Client registration and visit confirmation system (MVP)

Budget: 1000 PLN Deadline: 10 days

Hello!
We are the Business Atlas team, official partners of n8n. Developing a minimalist web system for managing a client database, appointment scheduling with switching between locations, and automating confirmations via SMS and one-time links is our core task. My experience shows that we will implement this project 100%.
The essence of your project relies on three critical nodes:
The first — Minimalist web interface, database, and multi-location (UI/UX + Multi-branch). Implementation of a unified client database and a convenient list of appointments by days with a chronology, service details, masters, and confirmation statuses (with an architecture laid out for a future calendar).
The second — Generation of one-time links and SMS integration (Smart Links Engine). When creating an appointment, the backend/n8n generates a unique token and sends an SMS to the client via API (TurboSMS / SMS Club) with a short link. Clicking the link opens a simple page for confirming or canceling the visit with one click.
The third — Real-time status updates and a reliable database (Supabase / PostgreSQL + n8n). Storing all data in PostgreSQL/Supabase. When the client clicks the button in the link, it instantly updates the visit status in the system next to the appointment card without the manager's involvement.
My experience as a project manager and my team's experience are focused specifically on system architecture, appointment services, and automation. Our tech lead will ensure the reliability of all API connections, the generation of secure tokens, and the stability of the web system. We deploy the entire infrastructure self-hosted on your VPS, guaranteeing 100% protection of clients' personal data.
Relevant cases of ours: Automation of appointment scheduling and confirmations for medical centers and service businesses, development of web systems for client management with auto-notifications.
Message me privately — let me know which SMS operator you plan to use.

Budget: 4990 PLN Deadline: 60 days

I have experience in developing web systems with client databases, user roles, records, statuses, API integrations, and automated notifications. I can implement an MVP with the expectation of further expansion without a complete redesign of the architecture.
Please advise:
1. How many types of users are needed at the first stage: administrator, manager, employee?
2. Should each user see all points of sale, or only those assigned to them?
3. Which SMS operator is planned for integration, and is there already access to its API?
4. What fields should the client card and appointment record contain?
5. Is it necessary to keep a history of SMS, confirmations, cancellations, and changes to the record?
6. Should the one-time link be valid until the time of the visit or have a separate expiration period?

Budget: 3000 PLN Deadline: 10 days

Hello, Oleksandr! Look: clients in a convenient database, appointment booking in a couple of clicks, and confirmation sent to the person via SMS — no manual hassle. I have already gathered a similar booking service, so I will do it neatly and without excess. We'll start with a working MVP, then we can scale with modules, as you plan. Can you call for 10 minutes — I’ll tell you what I’ll start with?

Budget: 6000 PLN Deadline: 60 days

Alexandr, for such an MVP, it's important not just to have screens, but a clean structure so that we can easily add a calendar and new modules later. I can implement authorization, a shared customer database, records for points of sale, SMS integration via API, and one-time links for confirmation/cancellation. I have 6+ years in PHP, have worked on CRM and REST API, so I can help lay a scalable foundation right away. I can discuss the logic and stages.

Budget: 4000 PLN Deadline: 20 days

Hello Oleksandr, I will create an MVP of the booking system so that it can already be used in work: authorization, shared client database, records by points of sale, a simple list/calendar by days, and a confirmation status next to each visit. I have experience with PHP, MySQL, JavaScript, and API integrations, so I can neatly implement SMS notifications and one-time links for confirmation/cancellation. I can start with the MVP stage and further develop the system together with you.

Budget: 1500 PLN Deadline: 7 days

😀 Hello!
✅ I will perform it with quality 👌
✅ I have already done similar work — booking and reminder systems (bots/web + DB) 🎯
🛠 How I will do it: client registration (services, masters, slots, calendar), visit confirmations and reminders (Telegram/SMS/email), admin panel; can be either a bot or a web cabinet. Deployment + instructions
🎥 Portfolio: Freelancehunt
✅ Contact me, we will agree on the details 👌🙂

Budget: 620 PLN Deadline: 10 days

Good day! I create exactly such recording systems: a client database, booking, and confirmation of visits via SMS. One-time links for confirmation and switching between points is a working topic for me. One question: through which SMS operator are we sending (TurboSMS, eSputnik, or another)? The logic of the one-time links depends on their API. The timeline for the MVP is realistic; we will agree on the details.

Budget: 2000 PLN Deadline: 16 days

About 2 weeks of work here is reasonable, to be honest. Feel free to reach out, I will do everything.

Budget: 50000 PLN Deadline: 28 days

We can create the MVP in 28 working days, the budget for the first stage is from 90,000 UAH. I will finalize this after a brief decomposition by roles, SMS operator, and the logic of one-time links.

Look, there’s a nuance here... it’s important not just to assemble the pages, but to lay down a proper data structure - clients are shared, points of sale are separate, records are tied to the point, employee, service, and status. Then the list by days can later be replaced with a calendar without reworking half of the system. Overall, it’s fine to start with a list - it’s more pragmatic for the MVP =)

> In the first stage, I would implement authorization, a client database, points, records, a list by days, manual status editing, integration with the SMS API, and a confirmation or cancellation page via a one-time link.
> I would separately lay down a log of SMS dispatches and the validity period of the link, because later such details save from chaos in real work.
> After the MVP, a full calendar, roles, analytics, reminders, message templates, and financial reports can be added without pain.

Clarification on the technical specifications - which SMS operator do you plan to use and is there already API documentation for it? The second question - should employees and services be reference tables in the system, or can they be entered manually in the record for the MVP?

Similar logic cases from Ingello:
> https://business.ingello.com/lita - medical system with records, roles, and workflows
> https://business.ingello.com/forma-crm - CRM and client management, tasks, and statuses
> https://business.ingello.com/busticket - booking, statuses, operational logic, and working with client actions

The main page for system development for the exchange - https://systems-fl.ingello.com/ua

!!I would not recommend doing this as a set of temporary pages!! - cheaper at the start, but more expensive with the first expansion. It’s better to lay down a simple but correct architecture. A miser pays twice, and the developer then pretends that it was intended that way. Expand

Budget: 1000 PLN Deadline: 3 days

Hello, my name is Mykyta.
I would be happy to develop this web system for client registration with a database, switching between points, and SMS confirmation of visits.

I have already done similar mechanics for a CRM, where I implemented time booking and sent one-time links to clients via API.
Portfolio: Freelancehunt

Estimated price, timeline: 1000 PLN, 2-3 days.
Feel free to write, and we will discuss the details.

Budget: 1000 PLN Deadline: 1 day

Good day.
Example: https://reserve.crms.demosites.viacore.group/
About us:
viacore.group
Package: https://crm.packages.viacore.group/

Budget: 5000 PLN Deadline: 7 days

The SMS confirmation recording system operates on a reverse cycle: the link does not break the state on double-click, an expired token returns a clear message, and the admin sees the status change without reloading. Django 5.2 LTS with HTMX for live status updates in the recording list. One-time links via UUID token with TTL, state change is atomic at the DB level. SMS through TurboSMS JSON API (endpoint message/send.json, Bearer authorization). If the alpha-name is not yet registered with the operators, it is advisable to start this process in parallel with development, as it is not instantaneous. Clarification on access structure: does one administrator work with all points through a switch, or does each point have a separate operator with their own login?

Budget: 777 PLN Deadline: 1 day

Hello. We can develop such a turnkey MVP system: authorization, client database, creation and editing of records, visit list by days, switching between points of sale, integration with an SMS operator, and confirmation/cancellation of visits via a one-time link.

At the first stage, I suggest creating a simple, fast, and user-friendly web system without unnecessary functionality: clients, records, points of sale, confirmation statuses, and SMS sending. Instead of a complex calendar, we can implement a list of records by days, but structure it in such a way that in the future, we can easily add a full calendar, roles, employees, services, statistics, and other modules.

Technically, I see the implementation on Python/FastAPI or Django + PostgreSQL, frontend on Nuxt.js. We will connect SMS integration through the API of the chosen operator. One-time links for confirmation will be generated by the system and will have time/use limitations.

We can take on the structure, design of a simple interface, backend, frontend, integration with SMS API, deployment, and further support after launch. Please write in private messages.

Budget: 1500 PLN Deadline: 14 days

Good day.
I propose to implement it on Next + NestJS. For calendar scheduling, we can integrate Calendly.
I am ready to discuss the details and start working.
I would appreciate the collaboration.

Budget: 15000 PLN Deadline: 7 days

Alexandr, for such an MVP, it is important to immediately establish the correct structure: a shared customer database, separate records for points of sale, a convenient list of visits by days, and a confirmation status next to each record. I have worked on backend services and API integrations, so I can help with the SMS operator and one-time links without unnecessary complexity. I will design the system so that it can be easily expanded into a full-fledged calendar. Shall we discuss the details?

Budget: 1500 PLN Deadline: 3 days

Hello!
I am ready to take on your project and will complete it urgently.
I have extensive experience with similar tasks, and there will be no difficulties.
If I have piqued your interest, feel free to write; I am happy to collaborate!

Budget: 1800 PLN Deadline: 12 days

Alexander, good afternoon. I have worked on systems of this type — client database, appointment scheduling, and auto-confirmation via API. Live working examples (not mockups):
— CRM automation for processing applications: guardlabs.online/demo/crm-recruiting/
— order reception and processing bot: guardlabs.online/demo/kava/

The plan for the first stage (MVP) according to your specifications:
1. User authorization + roles.
2. Client database — adding/editing, searching.
3. Appointment scheduling — creating/editing, confirmation status.
4. List of appointments and a simple calendar by days.
5. Switching between points of sale (shared database, separation by points).
6. SMS integration via API: one-time links for confirming/canceling appointments.

I am laying out the structure with the expectation of phased expansion with new modules, as you plan. Stack: Laravel + HTML/CSS/JS. The timeline for the first stage is 12 working days. Before starting, we will clarify the SMS provider and the final structure of the database. Expand

Budget: 1500 PLN Deadline: 10 days

Hi there,
I'm Hiroshi, a developer based in Japan who builds backend and admin systems on React and Node.
Two clients get booked for 3pm with the same stylist, because two points of sale create the appointment in separate tabs at the same moment and neither one sees that the slot is already taken, and the owner only finds out about the double booking when both clients show up at once.
I understand the priority at this stage is not the calendar itself, it is a solid MVP foundation that can grow with new modules later without reworking the structure.
What I would own is the full backend and admin system behind it.
User authorization, a client database shared across all points of sale, a daily list of appointments showing client name, service, employee and confirmation status, switching between points of sale, and integration with an SMS provider for one time confirmation and cancellation links.
There is a point worth building into the database structure from day one.
Booking a specific employee at a specific time needs protection against double booking enforced at the database level, not only checked in application code, and the one time confirmation link needs to be random, time limited, and handled idempotently, so a repeated click or a retried SMS API call never leaves the appointment in a conflicting state.
I have built similar systems with roles, confirmations and action auditing at MoveSave, where I acted as CTO, and that experience is in my portfolio.
I hope we can talk here about the details of the project, and one question would help right away with scoping.
Is an SMS provider already chosen with available API documentation, or is selecting and integrating one also part of this project.
An MVP is only as good as its ability to hold up when two staff members and a queue of clients hit it at the same time, and that is exactly what I build into the foundation from day one. Expand

Budget: 2500 PLN Deadline: 20 days

Hello. I have been working with React and Node.js for over 9+ years. I am ready to implement on Next.js/Nest.js.

Budget: 1200 PLN Deadline: 10 days

Hello. I can complete your task in PHP. I can start right now. Contact me, and we will discuss in more detail. We will agree on the price and deadlines.

Budget: 500 PLN Deadline: 5 days

Hello.

I am a NodeJS developer. I can create such a system for you. Write to me, and we will discuss.

Budget: 1500 PLN Deadline: 10 days

Good day, for such an MVP I would approach it with a clear architecture: authorization, a shared customer database, records by sales points, and a simple daily list with status filtering. I would also consider SMS integration via API, one-time links for confirmation/cancellation, and displaying the status next to each record. I have 8 years in web development and have built systems with admin panels and APIs. I can quickly assemble a working version and lay the foundation for a future calendar.

Budget: 1200 PLN Deadline: 10 days

Hello. Oleksandr, I see here not just a record, but a working MVP system with a client database, visits, multi-branches, and SMS confirmation via API. I can immediately lay out the architecture so that the list by days can easily be replaced with a calendar without rework. I work with Laravel and Vue, so I will quickly set up authorization, switching between points of sale, and confirmation statuses next to each record. I can propose the structure of the first stage right now.

Budget: 80 PLN Deadline: 3 days

Alexandre, for such an MVP, it is important to immediately establish a convenient structure: a shared client database, separation by points of sale, records by days with confirmation status. I can implement authorization, CRUD for clients and visits, as well as SMS integration via API with one-time links for confirmation/cancellation. I work with Laravel, HTML/CSS/JS and have created similar web systems with phased launches. Let's discuss how to best assemble the first version.

Budget: 2000 PLN Deadline: 7 days

Hello, I worked on a CRM system for a beauty salon — client database, appointments, SMS reminders via API, confirmation statuses. We covered 500+ clients and reduced no-shows by 40%.

I’m curious to know: will the system be used by several administrators simultaneously, or will each point of sale have a separate user?

I suggest we get in touch; I will provide you with free technical consultation and we can create a development plan + I will tell you about my team!

Budget: 3000 PLN Deadline: 14 days

"Hello! Part of this can be implemented through n8n as backend logic with Google Sheets as the database.

SMS integration via API, one-time links for confirmation, automatic reminders, and record statuses — all of this can be implemented without a full web framework at the start of the MVP.

Please tell me which SMS operator you plan to use and how many points of sale need to be connected in the first stage?

Portfolio: https://interesting-galley-0eb.notion.site/Portfolio-ff53a82144bf8251bc1581a6cef25f7d"

Budget: 1800 PLN Deadline: 21 days

Good morning,

the most sensitive element of this MVP is not the calendar, but the one-time link confirming the appointment — and I will say right away how I will do it, because this is where the easiest mistake can occur. The link must be based on a signed token with an expiration date and one-time use, linked to a specific appointment, not on the record identifier in the address. Otherwise, anyone who guesses the number can confirm or cancel someone else's appointment, and if the client accidentally opens the link, the status will change without their intention.

The second thing from SMS integration practice: delivery status handling from the gateway is needed, as well as idempotency of sending. Without this, upon restart or network error, the same SMS is sent twice (you pay double), and the system does not show whether the message was delivered at all. With your model — the confirmation status visible next to the record — this is the difference between a system that the reception trusts and one that still verifies by phone.

I accept the scope of the first stage exactly as described: user login, client database, creating and editing records, daily list with time, client, service, employee, and status, switching between points with a shared client database, integration with the SMS operator, and confirming appointments with a link. I design the data structure right away so that later converting the list into a full calendar and adding additional modules does not require a rebuild — this is what you are directly asking for.

How I work: the amount and deadline are known before the start, payment for the implemented, tested result, not for hours. Before acceptance, you will receive a video recording of the entire process: adding a client, creating a record, sending an SMS, confirming with a link by the client, and changing the status at the record. The code is your property and goes to your repository. I deliver the MVP in stages, with the first working screens after a few days, not at the end.

1800 USD is the starting amount for the scope of the first stage in the described form. For a binding estimate, I need three pieces of information: which SMS operator you are using or if I should recommend one, how many points and employees there are to start, and whether the employee should only see their own appointments.

Best regards,
Adam — ALEA Systems Expand

Budget: 1500 PLN Deadline: 14 days

Good day, Oleksandr. For the MVP, structure it so that clients are shared, while records, employees, and services belong to a specific point of sale — then the list by days can later be replaced with a calendar without reworking the database. The one-time link will have an expiration, protection against status change repetition, and an SMS sending log. I will implement authorization, clients, points, records, statuses, SMS API, and the confirmation/cancellation page; before launch, I will check the scenarios for expired tokens, repeated clicks, and operator errors. It is necessary to clarify the SMS provider and whether each point will have separate users.

Budget: 5000 PLN Deadline: 14 days

Hello!
I have reviewed the project description. I have experience in developing web systems and CRM solutions, so I can implement an MVP with the possibility of further scaling without the need to redo the architecture.
In the first stage, we can implement user authorization; Customer database; Creating and editing records; List of records by days; Switching between points of sale; Integration with SMS API; Confirmation and cancellation of visits via one-time links; Displaying the confirmation status in the system.
During development, I will immediately lay the structure that will allow for the easy addition of a full calendar, new modules, and other functionalities in the future.
The estimated time for completing the first stage is 2 weeks, depending on the details of the technical specifications and the chosen SMS service.
I would be happy to discuss the details and propose an optimal technical solution for your project.

Budget: 27000 PLN Deadline: 4 days

Good evening!

For such a system, it is appropriate to lay down an API-first architecture: a separate backend, database, authorization module, shared customer database, entity of points of sale, and records linked to the point, employee, service, and confirmation status. Then, the initial list by days can be seamlessly replaced with a calendar later, without reworking the domain model.

From a technical standpoint, the most sensitive areas here are integration with the SMS operator, one-time links, and status consistency. For this, it is better to separate SMS into a distinct adapter with logging of dispatches, retries, and API error control, while making confirmation tokens one-time and protected against reuse. It is also important to correctly delineate access between points of sale from the start, so that the shared customer database does not create conflicts in record visibility.

For the MVP, we would estimate such a scope as 4–6 weeks of work. The budget guideline is 27,000 UAH, but the final estimate depends on which SMS provider will be used, whether its documentation is available, and whether roles with different access rights are needed at the initial stage.

To define the scope of the first version, it is important to clarify just three things: which SMS operator is planned, what user roles are needed at the start, and whether confirmation/cancellation should update the status only through the link transition or also through a webhook from the service.

Budget: 2200 PLN Deadline: 12 days

Hello. I can implement the first working MVP without premature complications: authorization, a common client database, points of sale, employees and services, creation and editing of records, a chronological list by days, integration with one SMS provider, a one-time confirmation or cancellation link, and instant status updates. I will add roles, basic validation, a sending log, Docker deployment, and instructions. A full drag-and-drop calendar and additional modules I suggest to move to the second stage. The rate includes one responsive web interface, backend, database, and one SMS API. The deadline is 12 days. To start, I need user roles, client fields and records, the chosen SMS provider, and examples of statuses.

Budget: 2200 PLN Deadline: 7 days

Good day.

I can build this MVP so that it can be used effectively in daily work, not just to show a demo.

Each point will have its own list of records, while the client database will remain shared. The employee will be able to quickly create or modify a record, see visits for the required day, and immediately understand who confirmed attendance, who declined, and who has not yet responded.

I will make SMS confirmation as simple as possible for the client: no registration and unnecessary steps, just a click on a personal link and a choice of action. The result will be updated in the system immediately.

I estimate up to 7 calendar days for implementation, including testing of the main scenarios. If the integration with the SMS service goes smoothly without unexpected limitations, I can finish earlier.

Please let me know if the SMS provider has already been chosen or if it also needs to be suggested. Expand

Budget: 500 PLN Deadline: 5 days

Hello!

I am ready to develop a lightweight and fast MVP solution for client bookings and automatic visit confirmations via SMS.

Here’s how I envision the implementation of the first stage:
1. Backend and Database: I will write a clean backend in Node.js (Express/Fastify) paired with a relational database MySQL (there will be a shared client database and separation of records by points of sale).
2. Authorization and Management: Simple and reliable authorization for employees with the ability to quickly switch between branches.
3. Booking List: A convenient chronological list of bookings by days (time, client name, service, master, visit status) — this will allow the system to be launched as quickly as possible.
4. SMS Confirmations: I will set up integration with an SMS provider via API. When a booking is created, the client receives a message with a short one-time link to "confirm/cancel."
5. Response Handling: When the client clicks the link, the visit status in your panel automatically changes to "Confirmed" or "Canceled" in real time.

I guarantee clean structured code, a responsive interface, and assistance with deployment on your server.

Let’s discuss the details of integration with your SMS provider in private messages, and I will get started on the work. Expand

Budget: 1000 PLN Deadline: 7 days

Hello. I am implementing an MVP for client booking: available slots, confirmations, reminders, rescheduling, and an admin panel. Please advise on messaging channels and whether there is an existing calendar/CRM. The price is negotiable.

Budget: 5500 PLN Deadline: 25 days

Hello!

I am interested in your project. I have experience in developing web services using React, Next.js, Node.js, and PostgreSQL, including CRM systems, personal accounts, and services with third-party API integration.

For the MVP, I propose to implement a system with an architecture that will allow for the painless addition of new modules in the future without reworking the foundation.

Proposed stack:
* Frontend: React / Next.js + TypeScript;
* Backend: NestJS (Node.js);
* Database: PostgreSQL;
* Authorization: JWT;
* Deployment: Docker.

In the first phase, we can implement:
* user authorization;
* client database;
* creation, editing, and deletion of records;
* list of records by days with status display;
* support for multiple points of sale with a single client database;
* integration with an SMS provider via API;
* generation of one-time links for confirming or canceling visits;
* automatic status update of confirmations directly in the system.

The architecture will be prepared for further development from the start: calendar, user roles, online booking, reminders, analytics, reports, and other modules can be added without changing the existing logic.

I am ready to work in phases with payment after the completion of each phase. I would be happy to discuss the project details and propose an optimal technical solution. Expand

Budget: 1500 PLN Deadline: 10 days

Hello!
I am interested in your project, and I have already started developing a similar system. Currently, the main structure of the interface is ready: authorization, client database, record management, list of records by days, and switching between points of sale.
I can show you what I have achieved so far. If you like the concept, we can further refine the system completely according to your requirements and gradually add the necessary functionality: integration with SMS API, visit confirmations via one-time links, confirmation statuses, calendar, and other modules.
This approach will allow us to quickly obtain a working MVP version and then gradually expand the system without the need to redo everything.
If you are interested, I can show you the current result right now.
-> https://sistema-zapisi.vercel.app

Budget: 5000 PLN Deadline: 30 days

Good day, Oleksandr

I liked that you immediately defined the project as an MVP with the possibility of further development. In my opinion, this is the right approach — first implement a stable working system, and then gradually add a calendar, new modules, and additional automation.

I would like to clarify a few points:

1. Can one user work with multiple points of sale at the same time, or is access always limited to one?
2. If the date, time, or employee changes after sending the SMS, should a new confirmation link be automatically sent?
3. Should a one-time link be valid until the visit, or is it necessary to limit its validity period?
4. Is a log of changes to records and confirmation statuses needed for further control?

I have experience in developing CRM systems, personal accounts, and internal business applications on Laravel. In similar projects, I pay special attention not only to the implementation of functionality but also to ensuring that the system is easy to maintain and expand without reworking already functioning modules.

I would be happy to review a more detailed technical specification and propose an optimal structure for the first stage so that you can launch the system into operation as soon as possible. Expand

Budget: 20000 PLN Deadline: 5 days

🌟 Hello! I am ready to take on your task and provide the necessary technical support. I would be happy to discuss the details of our collaboration and start working.
🏆 Portfolio: Freelancehunt

I am glad to see you among my clients now and in the future.

Budget: 2000 PLN Deadline: 15 days

Ready for new challenges and collaboration! My years of experience in software development began in 2015, and since then I have gained deep knowledge by working on various projects for international companies and local businesses.
Technologies:
PHP (Laravel, Yii1/2, Symfony, CodeIgniter), JavaScript (ReactJs, Angular, VueJs/Nuxt, NodeJS), MySQL, Postgres, AWS, Docker.

I provide continuous technical support and have experience working with global film studios and media companies such as Disney and Paramount, which confirms the high level of my expertise.

My skills allow me to create and maintain various solutions — from online stores, landing pages, and CRM/ERP systems to analytical platforms and business process automation systems. Additionally, I have been involved in implementing artificial intelligence and cutting-edge technologies to create innovative products and future business development.

My works:
https://guidetoiceland.is/ https://adsmanager.paramount.com/
https://www.disneycampaignmanager.com/
https://brillday.com/
https://nextel.cloud/ Expand

Budget: 3000 PLN Deadline: 10 days

Hello, Oleksandr. What you described is a simpler version of what I have been doing for the past few years. I have over 10 years of experience and am ready not only to write you a basic version but also to continue developing it in "sprints." That is, we agree on a certain amount of work for a week or two, it gets completed, checked, and released (can be used on the production server). If you haven't assigned the project to anyone yet, you won't find a better candidate than me. In my work, you can read about iren-store, victoriasway, goodwill, and uchus.online to learn about my largest projects. I estimate the project approximately since all the details have not yet been discussed and the technical task (specification) has not been formed. I am ready to start immediately after writing the specification. I can guarantee maximum convenience, high productivity, fulfillment of all requirements, and the possibility of easy expansion. For implementation, I would choose Yii2, but Yii3/Laravel is also an option, though it will take a bit longer. Message me privately. We will definitely agree.

Budget: 2000 PLN Deadline: 20 days

Good day!
I will develop an MVP for a client booking system with the ability to maintain a client database, create records, switch between points of sale, and automatically confirm visits via SMS.

For such a project, I recommend Laravel; it is excellent for business systems, providing high performance, security, and flexibility for future development.

I would be happy to review the full technical specification and propose an optimal system structure even before the development begins.

Budget: 5600 PLN Deadline: 20 days

Hello! Your approach to the MVP is absolutely correct - launching with a chronological list and basic functionality will allow for a quick start without exceeding the budget.

I specialize in web system development and automation. I will implement a reliable solution for you with an architecture that is fully ready for future scaling (for example, replacing the list with an interactive calendar).

What you will receive in the MVP:
1. Database and locations: A shared client database with instant switching between points of sale with one click.
2. SMS automation: Generation of unique one-time links. The client confirms or cancels the visit on their phone, and the appointment status is immediately updated in the system.
3. API integration: Reliable connection to the SMS operator for sending messages from the service.

A detailed description of all development stages and architecture has already been sent in the discussion. I look forward to collaborating!

Budget: 1000 PLN Deadline: 7 days

Hello,

I can develop this MVP as a clean, scalable web system with user authorization, a shared client database, appointment management, point-of-sale switching, SMS API integration, and one-time confirmation links.

I would structure the system so each location has its own appointments while all locations share the same client database. For the first stage, I recommend a simple appointment list grouped by day, which can later be upgraded to a full calendar without changing the core architecture.

I have strong experience with modern web applications, APIs, authentication, databases, and third-party integrations, and I can build the MVP with future expansion in mind.

Thanks
Da Pham

Budget: 3000 PLN Deadline: 14 days

About me: Fullstack developer (Laravel + Next.js/React). I create projects "turnkey" — from authorization to production.

Relevant experience:
→ AI Interview Trainer — SaaS: authorization, JWT, user database, asynchronous tasks, integration with Telegram API
→ ProFarma Express — Laravel monolith: CRUD, multi-store, integration with external APIs, Filament admin panel

According to the specifications:

- Authorization — JWT (Laravel Sanctum or Passport). Roles (admin / employee).
- Client database — CRUD with phone numbers, visit history, notes.
- Appointment records — easier to start with a list by days (date → time → client → service → employee → status). Without restructuring, it will later be replaced with a calendar.
- Switching between points of sale — through middleware or a selector in the UI. A common client database, separate records — a typical multi-tenant setup without unnecessary complexity.
- SMS via API + confirmation link — sending a one-time link (token + signature). GET endpoint: confirm / cancel. No registration required for the client.
- Status of the record — next to each record: pending / confirmed / canceled.

Stack: Laravel + React (or Next.js). Database — SQLite/PostgreSQL.

Budget and deadlines:

MVP: auth + client database + records + list by days + 1 point

• Volume: MVP: auth + client database + records + list by days + 1 point

• Deadline: 2 weeks

• Price (PLN): 2,500 – 3,000 zł

Full MVP: everything above + multi-points + SMS + confirmation link + statuses

• Volume: Full MVP: everything above + multi-points + SMS + confirmation link + statuses

• Deadline: 3 weeks

• Price (PLN): 3,500 – 4,500 zł Expand

Budget: 1600 PLN Deadline: 6 days

Good day, I have been working in web programming for over 9 years. I work with REST APIs, frameworks, and CMS such as Django, Laravel, Yii2, WP, OpenCart, CodeIgniter, etc. I am ready to complete the task. Reviews: Freelancehunt

Budget: 10000 PLN Deadline: 7 days

Good day, Oleksandr
I am ready to complete this system in 7 days.
Similar projects are in the reviews of my profile.
Message me privately, and we will discuss the details.
I will be working on Laravel.

Budget: 4000 PLN Deadline: 14 days

I and my team offer a full cycle of turnkey development. The team consists of experienced developers, designers, and UX/UI specialists, which allows us to create a convenient and functional product that meets all your requirements. We will discuss the deadlines and price in private messages once we have a complete understanding of the scope of work. I expect feedback from you. I can send examples of work in private messages.

Budget: 6300 PLN Deadline: 10 days

Hello, Alexander.

I am ready to develop an MVP for the client appointment and visit confirmation system.

I understand the task:
- employee authorization;
- client database;
- creation and editing of appointments;
- list of appointments by days / simple calendar;
- switching between points of sale;
- a common client database for all points;
- integration with SMS API;
- sending SMS with a one-time link;
- confirmation/cancellation page for visits without authorization;
- displaying the confirmation status next to the appointment.

For the MVP, I suggest creating a simple and reliable architecture:
- backend: Python FastAPI or Django;
- database: PostgreSQL or SQLite for the first stage;
- frontend: simple admin panel without overload;
- SMS: connection to your operator via API;
- one-time tokens for confirmation links.

I need to clarify:
1. Which SMS provider is planned?
2. How many user roles are needed at the first stage?
3. Are access rights needed by points of sale?
4. Should reminders be sent before the visit or just confirmation?
5. Is there a need to import the existing client database?

I can start with the MVP without a complex calendar: a list by days + filter by point + confirmation status. This can be launched into real operation faster, and a full calendar can be added in the second stage. Expand

Budget: 1100 PLN Deadline: 10 days

Hello!

My team and I are ready to implement the project "turnkey" - from design to full development and launch. Our team includes experienced developers, designers, and UX/UI specialists, so we can create a convenient, modern, and functional product according to your requirements.

We will be able to determine the timelines and budget accurately after discussing the details and understanding the full scope of work. I would appreciate your feedback, and I can send examples of our work in private messages.

Budget: 600 PLN Deadline: 7 days

I have the necessary experience to implement this project: user authentication, working with client databases, integrating SMS services via API (one-time links, action confirmations), as well as experience in developing systems with multiple points of sale on a shared database. I understand the specifics of phased MVP development and will be able to lay the correct architecture from the start, so that subsequent stages (calendar, new modules) can be added without reworking the system.
I will do it quickly and at a reasonable price.
Write to me, we will discuss the details and start working.

Budget: 2500 PLN Deadline: 10 days

Hello.

I can develop an MVP for a web system for managing clients, appointments, and visit confirmations via SMS.

In the first stage, I will create a basic but functional version: authorization, client database, creating and editing appointments, a list of appointments by days, switching between points of sale, integration with SMS API, and one-time links for confirming or canceling visits.

The confirmation status will be immediately displayed next to the appointment so that the employee can see who confirmed the visit and who did not. The structure can be laid out in such a way that later it will be easy to add a full calendar, user roles, analytics, reminders, and other modules.

I see the approach as phased: first a quick MVP for real work, then testing, adjustments, and gradual expansion of the system.

Estimated timeframe: 2–4 weeks, depending on the details regarding the SMS service and user roles.
I will be able to provide a more accurate cost after a brief discussion of the appointment logic and the number of points of sale.

I am ready to review the details and propose a convenient implementation structure. Expand

Budget: 1710 PLN Deadline: 14 days

Good day! I will create the MVP completely according to the description: authorization, shared customer database, daily records, switching between points of sale, confirmation statuses next to records.
Regarding SMS: integration with TurboSMS/SMSClub via API. Confirmation — a one-time link: the client opens the page, clicks "Confirm" or "Cancel," and the status updates immediately. Note: the actual alpha sender name is registered with operators for several days and has a subscription fee — initially, we will use the standard provider name to launch immediately.
Design the architecture so that the calendar and new modules can be added without reworking.
20,000 UAH / 14 days, work through Safe in stages: (1) database + records, (2) SMS + confirmations + deployment.
Question: how many points at the start and is there already an account with the SMS provider?

Budget: 2000 PLN Deadline: 5 days

Добрий день. Готовий зробити для вас MVP такої системи без зайвого ускладнення, щоб її можна було швидко запустити і одразу використовувати в роботі. Реалізую авторизацію, базу клієнтів, записи по днях, редагування бронювань, статуси підтвердження, перемикання між торговими точками та інтеграцію з SMS через API з одноразовими посиланнями для підтвердження або скасування візиту. Зроблю все в простому мінімалістичному інтерфейсі та з нормальною структурою, щоб потім без проблем додавати нові модулі, календар, ролі працівників та інші функції.

Budget: 1200 PLN Deadline: 10 days

Hello!

Yes, I can develop this system
on PHP + MySQL.

Everything described in the technical specification will be implemented:
✅ User authentication
✅ Client database
✅ Records with a chronological list by days
✅ Switching between points of sale
✅ Integration with SMS operator via API
✅ One-time links for confirmation
✅ Confirmation status next to the record

Which SMS operator do you plan to use?

MVP timeline: 7-10 days
Cost: we will discuss after clarifying
details Expand

Budget: 50000 PLN Deadline: 28 days

I already have a nearly ready similar solution for records, client database, and confirmations via SMS; it can be quickly adapted and launched for your MVP =)

The estimate for the first stage is from 140,000 UAH and about 28 working days after agreeing on the structure of roles, SMS operator, and confirmation scenarios.

For implementation, I would go with a minimal but proper architecture - authorization, shared client database, daily records, points of sale, statuses, one-time links, SMS sending log, and the possibility to later replace the list with a full calendar without reworking the core.

You will need to provide access or documentation from the SMS operator, a list of points of sale, employees, services, and examples of message texts.

Please clarify if the SMS operator has already been chosen and whether different roles are needed in the MVP - administrator, point manager, employee.

Another nuance - the confirmation should only confirm or cancel the visit, or should the client also choose another time.

Similar experience in recording systems and medical processes - https://business.ingello.com/lita-doctor

Similar experience in CRM, business logic, and internal platforms - https://business.ingello.com/forma-crm

Main profile in systems and automation - https://systems-fl.ingello.com/ua

We can keep the first stage simple - create a working MVP that can actually be used in practice, rather than a beautiful template without operational benefit. Expand

Budget: 650 PLN Deadline: 12 days

Ready to execute.
Over 12+ years of experience in Web Development.
Examples of work https://koder.pp.ua/portfolio/

Budget: 900 PLN Deadline: 10 days

Hello.
For the first version, it is important to establish two things that are difficult to fix later: avoiding double booking for the same employee at the same time and controlling SMS dispatches to ensure messages are not duplicated upon re-clicking or operator error.
I have experience in developing working systems with step-by-step scenarios, statuses, roles, a database, webhooks, and admin logic. In this project, I will use the same approach: the record goes through defined states, and the employee immediately sees the current confirmation result.
I will create an MVP using Python/FastAPI + PostgreSQL with a simple adaptive interface. The SMS provider will be separated into a distinct module, so it can be replaced later without reworking the main system. Links will have an expiration time and will become invalid after the client's response.
After launch, I can remain for technical support and gradually add a calendar, reminders, statistics, or other modules.
Before starting work, I need to clarify whether an SMS provider has already been chosen and whether the employees' schedule needs to be considered when creating a record.
We can discuss the nuances in private messages.

Budget: 1550 PLN Deadline: 14 days

Hello, Alexander!
I noticed a detail - you are in Warsaw, Ukrainian SMS gateways are not suitable. If the points are in Poland - I will immediately integrate SMSAPI.pl or SerwerSMS.
Who I am - I launch web products entirely - architecture, backend, interface, deployment. My current SaaS: TypeScript, Node.js/Fastify, Next.js/React, PostgreSQL/Supabase, Stripe, Docker/VPS.

Basic MVP - everything from the application:
Authorization.
Common client database, records separated by points, switching between them.
Creating, editing, canceling records.
Daily list: time, client, service, employee, status next to the record.
SMS via API - arbitrary text or link.
One-time link - the client confirms/cancels the visit without authorization, the status changes immediately.
The data structure is such that the list of days will later be replaced by a calendar without changing the API.

Price: 1550 PLN / 14 days (depends on the depth of tests), through Safe in stages:
1. 500 - data schema, authorization, clients, records.
2. 600 - points, SMS, confirmation links.
3. 450 - statuses, history, deployment, acceptance.

Beyond the application - bonuses within the same budget:
- protection against double booking for an employee at the database level,
- tokens with expiration and protection against replay,
- interchangeable SMS module (changing the operator without reworking the core),
- event log, source code with instructions,
- 2 months of free support + agent "sysadmin", monitoring the service 24/7, restarting failed processes, sending alerts in Telegram. After two months, it remains with you, with almost zero maintenance.
Prospect (stage 2, on the ready event log) - "knowledge core", my open development, without licenses and subscriptions. It accumulates the history of records and responds in plain language in Telegram or the dashboard - "show unconfirmed for Friday", "who cancels more often". It works on your VPS - client data does not go to third-party services, easier with RODO. Plus reminders, analysis of no-shows, online booking widget.
The question is, do you have a VPS for deployment or should I find one? Expand

Budget: 2400 PLN Deadline: 12 days

Alexander, I looked at the description. For the MVP, it makes sense to keep the list of records by days - this way the system can be launched faster. I will structure the data so that later a full calendar can be added without reworking the database. In the first stage, I will implement a general client database, separate records for each point of sale, users, visit statuses, and SMS sending via API. The link for confirmation or cancellation will be one-time and have a limited validity period. Right now, I am working on the internal CRM/ERP TaskFlow with clients, roles, statuses, and the administrative part. Which SMS operator do you plan to use and for which country will the numbers be?

Budget: 1700 PLN Deadline: 14 days

Hello! I will develop an MVP for your system that will provide basic functionality for managing a client database and automating appointment confirmations via SMS, allowing you to handle up to 100 entries per day. I will use technology stacks such as Node.js for the backend, Express for the REST API, and MongoDB for data storage. I can send examples of similar projects and architectural diagrams in private messages.

Budget: 100 PLN Deadline: 1 day

Good day, Oleksandr.

A shared client database across multiple locations works best through a single table linking records to specific locations — this allows for the preservation of client visit history regardless of which location they choose, while also providing flexibility for future access rights additions per location without reworking the schema. For the MVP, it is sufficient to separate clients and records into distinct entities, where each record contains links to the location, employee, and confirmation status.

A list of records by days with chronological sorting will be implemented as a simple view component in React, which will later be replaced with a full calendar interface without changes to the backend — the backend will deliver data via REST API in a format suitable for both the list and the calendar grid. One-time links for confirmation are generated as signed tokens with a limited validity period, ensuring their one-time use and protection against reuse.

Integration with the SMS operator is built as a separate module with a clear interface, allowing any provider (TurboSMS, Binotel, or others) to be connected without affecting the core logic. Your system will send both arbitrary text messages and messages with confirmation links, and the client's response status will be updated immediately next to the record in the list. The MVP architecture will strictly adhere to the described functionality to quickly launch the system in real operation, with readiness to gradually add modules.

450–600 PLN; ≈6 days
Minimum version for basic record keeping without SMS automation.
- Shared client database for all locations
- Lists of records by days with editing capabilities
- Functionality to switch between locations
- Basic user authorization

1000–1500 PLN; ≈16 days
Full MVP with visit confirmation automation via SMS
- Complete functionality of the previous version
- Integration with SMS API for sending messages
- System of one-time links for confirming/canceling visits
- Automatic real-time update of confirmation statuses
- Adaptive interface for use from any device

1800–2100 PLN; ≈24 days
Extended system with improved interface and preparation for scaling.
- Complete functionality of the previous version
- Enhanced visual calendar instead of a simple list
- SMS template system for different types of services
- Advanced analytics on attendance and confirmations
- Priority support and maintenance after launch Expand

Budget: 2000 PLN Deadline: 14 days

Hello! I'm ready to take on the MVP.

Stack: Next.js + Supabase (authorization, database, RLS for point separation with a shared client database), deployment on Vercel. I am designing the list of entries in such a way that I can later replace it with a calendar without redoing the database.

Everything from the technical specifications is included in the MVP: authorization, client database, entries, multi-points, SMS via API, one-time confirmation links, status next to the entry.

Please clarify: which SMS provider will you be using - this affects the exact price.

I have experience with Supabase backend and an internship in e-commerce operations.

Budget: 1000 PLN Deadline: 5 days

Good day! I am creating a confirmation link signed with a token that has a limited lifespan: one click from the client updates the status next to the record automatically, without manual page refresh. I distribute points through a filter by location, and the client card is shared across all, so the phone number is not duplicated when transferring between points. For the SMS operator, I immediately set up delivery status tracking through a webhook, because otherwise, it’s not visible whether the message has been delivered at all. I build the list of records by days on a structure that is later replaced by a full calendar without migration. I will provide a free database schema and confirmation flow in personal messages. I look forward to collaborating.

Budget: 1022 PLN Deadline: 5 days

Hello!

I am ready to develop a reliable, fast, and minimalist turnkey web booking system for you. I have extensive experience in database design (SQL/PostgreSQL) and creating automated services with API-based messaging.

I will implement the architecture so that this MVP stage becomes a solid foundation, and the system can be easily scaled in the future (for example, replacing the list with a full-fledged interactive calendar or adding analytics) without rewriting the code.

How I will implement the key technical requirements:

Database Architecture (Multi-location): I will configure the relational database so that the clients' table is global (a single pool to avoid duplicates), while the records and employees tables have a clear link to location_id. Switching between points in the admin panel will be instantaneous due to proper indexing.

One-time Link Logic (Visit Confirmation): A unique secure token (UUIDv4) or a signed address like [site.com/v/specific_hash](https://site.com/v/specific_hash) will be generated for each booking. The client does not need to register anywhere — by following the link, they see a simple page with two buttons: "Confirm" or "Cancel."

Automation and SMS API: I will integrate the system with any SMS operator of your choice (TurboSMS, AlphaSMS, etc.). The script will automatically insert the unique link into the message text when creating a booking. When the client clicks the button, the status in your list will be instantly updated via WebSocket or asynchronous request.

Interface: I will create a clean, lightweight, and responsive interface (convenient for both desktop and mobile management on the go). Instead of an overloaded calendar, I will implement an informative and scannable list of bookings by days with a chronological timeline.

Technology Stack: Python (FastAPI/Django) + PostgreSQL (for rock-solid data integrity) + Docker for easy deployment on the server.

Conditions:

Budget: Approximately 12,000 – 15,000 UAH (depending on the chosen frontend stack and the depth of user rights settings).

Timeline: 5–7 days (including full testing of SMS sending and link transitions).

I am ready to discuss the details, select the optimal SMS service, and demonstrate examples of my backend systems in private messages! Expand

Budget: 2500 PLN Deadline: 20 days

Hello! I can implement the MVP of this system on Next.js: authorization, client database, records for points of sale, a list of bookings by days, SMS confirmation, and one-time links for confirming or canceling a visit.

I will structure the system in such a way that it will be easy to add a full calendar, new modules, and user roles in the future.
I am ready to discuss the details.

Budget: 1500 PLN Deadline: 7 days

Hello!

I am interested in your project. I have experience in developing full-stack web applications using JavaScript/TypeScript, React, Node.js, REST API, and databases.

From the description, I see that you need not just an MVP, but a system that can be easily scaled in the future. This is exactly how I propose to build the project: with a well-thought-out structure, so that it will be easy to add a full calendar, new modules, and other functionalities later on.

I can implement:

* user authentication;
* client database;
* creation and editing of records;
* list of records by days;
* support for multiple points of sale;
* integration with SMS API;
* confirmation or cancellation of visits via one-time links;
* real-time display of confirmation statuses.

I am ready to discuss the details, propose an optimal architecture, and a phased development plan. If further development of the system is planned after the MVP launch, I would be happy to continue working on the next stages.

I look forward to collaborating! Expand

Budget: 7500 PLN Deadline: 30 days

Hello, there is such a case in the portfolio.
Write to me, I will break everything down, and I will make a breakdown by stages of development.
Everything is turnkey.
The price is real after the approval of the technical specifications.

Budget: 5000 PLN Deadline: 30 days

Good day!

Extensive experience in developing web projects and turnkey mobile applications. Experience in developing information processing systems, freelance exchanges, and management systems.

I use the technology stack: PHP (Laravel), React Native, MySql, Vue, Jquery, Bootstrap, ElasticSearch.

Budget: 500 PLN Deadline: 5 days

Hi, there.

I have extensive experience developing business management systems, CRM platforms, and appointment scheduling applications with third-party API integrations.

✔ Secure user authentication and role management
✔ Shared client database with multi-location (point of sale) support
✔ Appointment creation, editing, and daily scheduling views
✔ SMS API integration for automated notifications and confirmations
✔ One-time secure links for visit confirmation or cancellation
✔ Real-time confirmation status displayed directly within appointments
✔ Modular architecture designed for future expansion into a full calendar and additional modules

For the MVP phase, I would recommend building a clean, scalable system that can be used immediately in production while keeping the architecture flexible for future enhancements.

I focus on usability, reliability, and maintainable code to ensure smooth long-term development.

Looking forward to discussing the workflow details and helping bring your MVP to life.

Thanks. Expand

Budget: 25000 PLN Deadline: 14 days

We have experience in creating business process automation systems. We implement MVP through a reliable stack that will ensure stable operation of the client base and integration with SMS gateways for visit confirmations. Designing the architecture will allow for easy scaling of the service in the future. We are ready to discuss the details and start working soon.

Budget: 1500 PLN Deadline: 10 days

Hello!
I am ready to implement a similar recording system in a modern format with further expansion.

Budget: 1000 PLN Deadline: 14 days

Good day. I have reviewed the task. For the MVP, it is important to correctly design the data structure from the start so that a simple list of records can later be replaced by a calendar without reworking the entire system.

I propose to implement the system using ASP.NET Core Web API, PostgreSQL, and a responsive web interface. The main entities of the database are: users, points of sale, clients, employees, services, records, SMS messages, and status change history.

Logic of operation:

The employee logs in and selects a point of sale.
Creates a client or finds them in the general database.
Creates a record with a date, time, service, and responsible employee.
The system generates a one-time token with an expiration date.
A personal link is sent to the client via the SMS operator's API.
The client confirms or cancels the visit without authorization.
The status is immediately updated next to the record and stored in the history.

One-time tokens must be stored securely, have a limited validity period, and become invalid after use. It is advisable to separate the integration with the SMS provider into a separate module so that the operator can be changed later without altering the business logic.

In the first version, I will implement a list of bookings by days with filtering by point of sale, date, employee, and status. The architecture will immediately allow for the connection of a full-fledged calendar, reminders, analytics, and additional messaging channels. Expand

Budget: 333 PLN Deadline: 1 day

Hello! I will complete your task quickly and efficiently. I will create an MVP system. I am currently available and can start right away.

My recent works
https://indexfast.pro - fast website indexing
https://mono-bank.pp.ua - everything about Monobank
https://mamamia.pp.ua - online store
https://programist.pp.ua/ua/portfolio/ - portfolio of works
https://monitortest.pp.ua - monitor testing
https://keytest.pp.ua - keyboard testing
https://pctest.pp.ua - computer testing
https://devroman.dev/portfolio/ - portfolio
https://vseetut.matviy.pp.ua - layout
https://indexfast.pp.ua - fast website indexing

My portfolio: https://freelancehunt.com/ua/freelancer/romas6ka.html#portfolio
Message me, I will start working today. I look forward to collaborating with you! Expand

Budget: 1000 PLN Deadline: 7 days

Hello. I am ready to develop a minimalist web system for automating appointments and confirming visits with clean code without bulky builders.

I will implement a client database linked to points of sale, a chronological list of bookings by days, and a module for integration with an SMS operator. Clients will be able to use one-time links to change the status of their visit, and you will instantly see updates in the control panel.

I suggest moving to private messages to discuss the details of the development and choose the appropriate SMS service.

Budget: 1600 PLN Deadline: 7 days

Hello. The project is very interesting, especially your approach to phased development (MVP) — this is the most effective way. I have extensive experience in creating custom CRMs, booking systems, and complex admin panels, so I clearly understand how to lay the right architecture from the very beginning.
How I will implement your task:
1. Architecture and stack: I suggest using Next.js and Supabase (PostgreSQL). This will allow for the quick deployment of a reliable database and authorization system that can easily withstand further scaling of modules.
2. Locations and clients: I will design a relational database structure where the client base is common and unique for the entire system, while records and schedules are clearly isolated and tied to specific points of sale.
3. SMS and one-time links: I will integrate the API of your chosen SMS gateway (for example, TurboSMS or Twilio). I will implement the generation of unique secure tokens for links. When a client clicks on such a link, the status of the record is automatically and instantly updated in your interface.
4. Interface: I will develop a fast and minimalist list of daily records (CRUD operations). The code will be written in such a way that in the future, transitioning to a visual calendar will not require rewriting the database or backend logic.
My works:
paymex.io
my-fitness-club.com
artmastermops.net.ua
wholesalelegoworldwide.com
I am ready to discuss the details, agree on a provider for SMS distributions, and get started. Write to me. Expand

Budget: 1500 PLN Deadline: 27 days

Hello!
I have over 8 years of commercial experience in development. I have a piece of a ready-made system where authorization is already implemented. Creating users and adding permissions for them. There is a backend and frontend part. It is written in Go+MySQL+VueJS+Vite.
Authorization via JWT works as a SPA. I can run it to demonstrate.

It needs to be completed.
Add users -> client database;
creation and editing of records;
list of records (or a simple calendar); a simple Calendar needs to be added.
Switching between trading points;
integration with an SMS operator via API;
sending SMS with any text or link for visit confirmation;
confirmation or cancellation of the visit by the client via a one-time link;
displaying the confirmation status directly next to the client's record.
The cost will be 1500 USD with a timeline of 27 days. Expand

Budget: 2000 PLN Deadline: 15 days

I will do something like a mini-SRM, I have work experience that can also be seen here:
https://pprintdim.com/portfolio

Budget: 362 PLN Deadline: 5 days

Good day. I looked at the technical specifications — I understood that for the MVP, a client database is needed, a list of appointments by days (with time, client, service, employee, and confirmation status), switching between points of sale with a shared client database, and SMS with a one-time link for confirming/canceling the visit. Such a list will later replace a full calendar without breaking the database structure — so I will immediately lay out the tables for appointments and points of sale with scalability in mind. I will implement authorization, CRUD for appointments, a point switcher, and a confirmation page via token from the link, the status of which will be immediately pulled next to the appointment. Please let me know which SMS operator (TurboSMS, SMS Fly, alphaSMS, or another) you plan to work with — this will affect the implementation of the integration. I am ready to deliver a working MVP in approximately 5 days.

Budget: 1000 PLN Deadline: 10 days

Hello!

The task is clear: a compact system for maintaining a client database, appointment records, and confirmations via SMS through a one-time link, with switching between points of sale. Specifically, as an MVP that can be immediately put into real operation and then expanded with modules.

I immediately see the key points of stage 1:
— a general client database with separate appointment lists for each point;
— records with time/service/employee/status, so that the daily list can later be replaced by a calendar without reworking;
— integration with an SMS operator and sending confirmation links;
— a one-time link with a limited duration: the client confirms or cancels the visit, and the status is pulled next to the record.

I will do it on Laravel + Vue, neatly and with an eye on further expansion. I am ready to take it on.

Please let me know which SMS operator you plan to work with (country/service) as the details of integration depend on this. I will provide a reasonable estimate for the timeline and budget for this volume; everything is compact here. Expand

Budget: 8000 PLN Deadline: 15 days

I create booking systems and calendars. During the development period, I will provide a test server (virtual machine) that can be used for demonstration and testing. In my repo, there are samples of a similar platform; if necessary, I can provide links to demo (test) sites of the system with a calendar, appointment management, and appointment creation both from the admin panel (manager or owner panel) and from the public widget.

Budget: 770 PLN Deadline: 7 days

Good day! I am ready to develop an MVP of a client booking system with authorization, a client database, records, SMS API integration, and visit confirmations via a one-time link. I will implement a clear and scalable architecture so that in the future it will be easy to add a calendar and new modules. I am ready to discuss the details and start working soon.

Budget: 1000 PLN Deadline: 15 days

Good day.

The main thing for you is to lay down the correct architecture of the MVP so that new modules can be added in future releases without rewriting the system.

The first stage involves a shared client database, separate records for points of sale, authorization, a list of records by days, integration with SMS via API, one-time links for confirming or canceling visits, and instant status updates next to the record.

I will immediately structure the data in such a way that in the future, the list of records can be replaced with a full-fledged calendar without changing the business logic and API. I will also provide secure one-time tokens with a limited validity period and protection against link reuse.

Separately, we should agree on the SMS provider. If one has not been chosen yet, I can help select an option so that it can be easily replaced in the future without changing the core logic of the system.

Before starting work, I will prepare the database structure and the scheme for the first stage of the MVP for free. After approval, I will immediately proceed to implementation. This will not take much time but will ensure that the architecture fully aligns with your project development plans. Expand

Budget: 4500 PLN Deadline: 14 days

An MVP with one-time links for confirmation is a classic scenario for a web system with a database, authorization, and SMS integration. I will develop it on a backend stack (Python or Node.js depending on your preferences) with a relational database for clients and records, the frontend will be simple and minimalist — a list of records by days with a filter by points of sale, integration with an SMS operator through their API for sending confirmation links, and the confirmation mechanism will be implemented through unique tokens in the URL. I will support the code for free for two weeks after launch — I will help with minor adjustments and settings. Ready to start.

Budget: 1900 PLN Deadline: 10 days

Hello.
I am a Senior developer with ten years of experience.

Full life cycle - from design and MVP to real operation in combat conditions. I have worked on large projects such as online taxi, express delivery, and hypermarket. In each of them, I created my internal CRM system for working with clients, and making the required MVP for you will not be a problem.

I guarantee results and quality; working with me, you won’t have to worry about quality and results. I always create easily extensible MVPs that can be improved and worked on for many years.

Developing such an MVP will take about 50 hours - just over a week, and you will receive the result. I work through escrow, feel free to write, and we can discuss all the details. I am looking for long-term cooperation and project development over many years.

Budget: 1350 PLN Deadline: 4 days

Ready to create a client appointment system with SMS confirmation for visits — a working MVP, without unnecessary functionality, just what your business needs right now.

What I see for the task: client database → appointment form → automatic SMS sending with a confirmation link → status "confirmed/pending/canceled" in the admin panel. This is a typical scheme for beauty salons, medical centers, service stations — where clients often forget about their appointments and do not show up.

Technical side:
• Backend on Node.js + Express, MySQL for storing clients and appointments
• Sending SMS via Twilight API or TurboSMS — we will choose the optimal service for your country
• Cron job sends reminders 2 hours before the appointment and requests confirmation via a short link
• Simple admin panel with a list of appointments by days and statuses

Experience: I created a similar CRM for a car wash — appointments by locations, SMS reminders via TurboSMS, after implementation the number of no-shows dropped by ~40%. The logic is the same and repeatable — quick launch without surprises.

✅ Work without adventures: we start with agreeing on the database structure and integrating the SMS service (I already have ready solutions).

After delivery — I do NOT disappear. If a question arises or you want to add a new field or function in a month — I will help without additional payment.

Write to me — and in 10 minutes I will outline the technical plan for the first stage:
— which specific fields in the database,
— which SMS service suits you,
— in what format the list of appointments should be in the admin panel. Expand

Budget: 750 PLN Deadline: 1 day

Hello!

We can develop an MVP client booking system for you with the possibility of further scaling without the need to rewrite the architecture when adding new modules.

1. Are you planning to add online client booking and a personal account in the next stages to incorporate this into the architecture from the start?
2. Is it necessary to store the history of SMS, confirmations, and changes to bookings for subsequent auditing of employee actions?

—
About us

We are dZENcode – a full-cycle IT development company: from design and programming to integrations and post-release support of digital solutions.
We create projects from scratch, as well as connect to existing solutions that need refinement, development, or technical support.

You can find detailed information about our services and rates on our official website: Freelancehunt

Take a look – after that we can discuss the details and agree on the next step.

⚠️ After clarifying all the details, we will determine the scope of work, the suitable format of cooperation: task-based, outsourcing, or outstaffing – and the final cost.

With us, projects are guaranteed to reach release:
• 10+ years providing IT services;
• 90+ in-house specialists;
• 250+ public reviews since 2015;
• We support products under SLA after launch;
• We work under NDA and contract with the company! Expand

Budget: 4000 PLN Deadline: 28 days

Good day, Alexander.
I can offer you a booking system of my own development for a grooming salon.
I will show you an example. In any case, this will require adaptation for your project, but you will be able to assess the possibilities.
Feel free to reach out.

Budget: 1500 PLN Deadline: 5 days

Hello ⭐️! I am a highly qualified web developer with over ✅ 7 years of experience in development and modern web technologies.

Recent projects:
✔️https://homenly.com
✔️https://confidence-tech.com
✔️https://homexcrm.com
✔️https://omgfirms.com
✔️https://skyhigh-lviv.com/
✔️https://sweet-sdpearls.de/
✔️https://novobudova.pro
✔️https://aquahub.org.ua
✔️https://boostylabs.com
✔️https://ol.zp.ua
✔️https://emporio-sports.cz

My stack includes:
✅ Frontend: HTML, CSS, JavaScript, React.js, Vue.js, Angular
✅ CMS: Wordpress(woo), OpenCart, Prestashop, Webflow
✅ Backend: PHP, Laravel, CodeIgniter, Python, Django, Flask, Node.js, Next.js
✅ Databases: MySQL, PostgreSQL
✅ Other skills: Git, API integration

Why choose me?
✔️ Fast and quality execution: Your tasks will be completed on time and with impeccable quality.
✔️ API integration: Need seamless integration of third-party APIs? I will take care of that.
✔️ Custom solutions: I take your ideas and turn them into successful web solutions tailored to your business needs.

Let's collaborate and create something amazing together! Expand

Budget: 1000 PLN Deadline: 10 days

Hello.
I will develop the service according to the specifications.
Thank you.
------------------------

Budget: 1000 PLN Deadline: 10 days

I am a NextJs, React, NestJs developer. I am ready to take on this task.

Budget: 1000 PLN Deadline: 1 day

Hello, Alexander!
This is a well-thought-out MVP with a clear roadmap, and I like the phased approach because it allows for maintaining the simplicity of the initial version while preparing the architecture for future expansion.
I would build the system using Next.js, NestJS, PostgreSQL, Prisma, and JWT authentication with a modular structure so that features like a full calendar, notifications, analytics, and additional modules can be added without refactoring the core system.
The MVP will include user authentication, a shared client database, appointment management, switching between service points, daily appointment lists, integration with SMS API, one-time links for confirmation, and real-time status updates.
The one-time confirmation process will use secure tokens with an expiration date, allowing clients to confirm or cancel appointments without creating an account while maintaining a complete audit trail.

The database will separate clients, service points, appointments, staff, and SMS history, simplifying scaling as the system grows.

Such architecture ensures fast application performance, ease of maintenance, and readiness for implementing future features like calendar view, recurring meetings, online booking, and reporting.
I would like to discuss this with you.
Thank you. Expand

Budget: 1500 PLN Deadline: 10 days

Hi,

I can develop the appointment management system with SMS confirmation. I have experience building business management systems, API integrations, and booking platforms.

I understand the MVP scope: user authentication, client database, appointment creation and management, multi-location switching with shared client database, SMS operator API integration for sending confirmation links, one-time link generation for client confirmation or cancellation, and confirmation status display on appointment list.

I recommend Next.js frontend, Node.js backend, PostgreSQL for relational data (clients, appointments, locations), JWT authentication, and SMS API integration (Twilio or your preferred provider). Architecture will support easy calendar upgrade in future stages without restructuring.

I am available immediately. Please share which SMS operator you use so I can confirm API compatibility.

Thanks, Youssef Expand

Budget: 100 PLN Deadline: 1 day

Good day.

I have 7+ years of experience in website and web system development. Your task is clear: a simple, user-friendly MVP system for client appointments, a client database, and visit confirmations via SMS/API.

I propose to implement it on Laravel + MySQL/PostgreSQL to ensure the system is stable, secure, and easily expandable in the future.

What I will do in the first stage:

user authorization;
client database;
creation/editing of appointments;
list of appointments by days;
switching between points of sale;
integration with the SMS operator via API;
one-time links for confirming/canceling visits;
confirmation status next to each appointment.

I work in stages: first the MVP for real use, then we can add a full calendar, roles, analytics, payment, reminders, and other modules. Expand

Budget: 1000 PLN Deadline: 7 days

Hello!!!

I will create a simple minimalist web system for you so that the project can be scaled and new features can be added.

Feel free to reach out.

Budget: 1000 PLN Deadline: 10 days

Hello.
I can implement and then scale it on a regular basis.
Message me privately - I will provide a link to the created and functioning service, made personally: architecture, front-end, back-end, and deployment.
For your task, I am ready to write a complete technical specification.

Budget: 1000 PLN Deadline: 14 days

Hello! I can implement your client booking system with a database and SMS integration via API. I have experience in developing similar projects in Python. I am ready to discuss the details.

Budget: 12000 PLN Deadline: 30 days

Ready to help you. I have all the necessary experience and have worked with SMS gateways multiple times. Message me privately, I'm sure we can come to an agreement.

Budget: 1000 PLN Deadline: 3 days

Good day!

I will do everything quickly and efficiently, without any problems.

I already have ready-made modules for such systems — a calendar and a list of records, a client database, authorization, switching between points of sale with a shared database. They can be reused, so we will assemble the MVP much faster than from scratch.

I have similar experience: I wrote the backend from scratch for the booking service web.rstays.com — there are bookings, statuses, roles, and integrations. SMS confirmation via a one-time link and working with the operator's API is also not a problem.

Examples:
https://momicro.com
https://web.rstays.com
https://ai-desk.ai

GitHub: https://github.com/axbuglak

Write to me — we will discuss the details, cost, and timelines.

Sincerely, Oleksiy Buglak Expand

Budget: 500 PLN Deadline: 10 days

Good day!
I have already developed a similar system on Laravel.
I can create an MVP for you in a short time.
Feel free to reach out, and we will discuss all the details.
I will send you an example of a similar project in private.

Budget: 25000 PLN Deadline: 14 days

A web system is needed where the administrator manages a client database, creates records for appointments, and the client receives an SMS with a one-time link to confirm or cancel the visit.

I will create it using Python (FastAPI) + PostgreSQL + a lightweight front end on Vue 3. Three key solutions: one-time tokens for confirmation are stored with TTL and invalidated after the first access to prevent double confirmation; SMS are sent through queues (Celery + Redis) to avoid blocking the UI and to have retries in case of operator failures; multi-point functionality will be implemented using tenant_id at the record level, with a shared client table to avoid duplication. The list of records by days with a timeline will be designed so that a calendar view can be easily integrated later without changing the API.

Which SMS operator do you plan to use, or do you need to find an option for the UA market?

Budget: 2000 PLN Deadline: 20 days

This is an ideal task for the bubble.io platform. There, you can create a project and continuously refine and improve it. You can also create a mobile application there. It's very convenient - everything will be in one box. Write to me. I will tell you more.

Budget: 1000 PLN Deadline: 14 days

Good day!
I have read the specifications completely - a client booking system with SMS confirmation via one-time links, MVP with the possibility of expansion. The task is clear.
I noticed a key detail: one-time links for confirmation/cancellation are tokens in the database with an expiration date. The client clicks the link → the system updates the booking status → the administrator sees the change in real-time. It will be implemented cleanly, without unnecessary complexity.
Stack: Python (FastAPI) + PostgreSQL + Jinja2 for the interface. Or PHP + MySQL if there is a hosting preference. SMS through Turbosms, Alphasms, or another operator of your choice - connected via their REST API.

I will do the following:
Authorization - login/password, sessions, protection
Client database - adding, editing, searching by name/phone
Bookings - creating/editing/canceling, linking to the client, services, employee, time
List of bookings by days - chronological, with name/service/employee/confirmation status
Switching between points of sale - shared client database, separate bookings
SMS integration via operator API - custom text or link
One-time links - confirmation/cancellation by the client, auto-updating status
Simple minimalist interface - convenient on the phone for the administrator

I would like to clarify 2 points:
Which SMS operator do you plan to use - Turbosms, Alphasms, or is one already chosen? This affects the integration.
Is hosting available or do you need a recommendation - the system requires VPS (not shared hosting) for Python/FastAPI.

Cost: from 1000 PLN for MVP / Timeline: 14–16 days.
Please send details about the SMS operator and hosting - let's get started.

—
Denys Ivanchенко · WordPress developer / Python development Expand

Budget: 500 PLN Deadline: 1 day

Good day, Alexandr!
Overall, the task is clear. To provide an accurate response regarding the deadlines and price, I would like to clarify some questions that arose after analyzing your task.
Please write in private messages – we will discuss the details and your wishes.

Budget: 1234 PLN Deadline: 1 day

Hello! I have experience in web system development, integration with SMS services via API, and working with databases (MySQL). I would be happy to help you!

Budget: 1500 PLN Deadline: 7 days

Good day, I am ready to take on the work, I have experience in creating similar websites, as well as with integrations through external APIs.

I am attaching my portfolio website https://dake-cart.xyz/

Budget: 1234 PLN Deadline: 3 days

Good day. I am ready to implement such a system for you. 3 days. 10,000 UAH.

Budget: 1143 PLN Deadline: 14 days

Alexandr, I understand that you need to quickly launch a tool that will eliminate manual appointment confirmations and free up administrators' time. You want to have an easy client database with the ability for online appointment confirmation via SMS link to minimize no-shows. For the MVP, I will focus on creating a clear appointment table linked to locations, set up integration with an SMS service for automatic triggers, and create a simple page for the client where they can click a confirmation button. This will allow real-time updates of appointment status in your database. Which SMS gateway do you plan to use for the messages, or which one have you currently settled on?

Budget: 100 PLN Deadline: 1 day

Good day, I am ready to complete your task quickly and efficiently. I have extensive experience in creating various bots. Please write to me in private messages to discuss the details. I would be happy to help :)