Budget: 15000 EUR Deadline: 60 days
Hello.
I can show works specifically on turnkey mobile applications
Rating of works on Behance (more than 500,000 views)
Budget: 15000 EUR Deadline: 60 days
Hello, my name is Artur, and I represent SUBI Labs. We specialize in developing cross-platform mobile applications and web services. We are confident that we can offer you a full range of services for creating a digital platform for sending paper letters, with a maximum focus on your business needs.
🔧 What we offer
📱 Mobile application (iOS + Android)
Development with React Native — a single codebase for both platforms, which saves time and resources.
Fast and efficient publication on the App Store and Google Play.
🌐 Web version
• Implementation with React.js — lightweight, fast, and responsive.
• Compatibility with most modern browsers for user convenience.
💼 MVP functionality:
• Registration and account management.
• Letter constructor with the ability to upload logos and custom designs.
• Choice of delivery method and integration with payment systems (bank cards, PayPal, Apple Pay, Google Pay).
• Integration with external sending service via SFTP.
• Personal account with order history.
• Full GDPR compliance for data security and confidentiality.
⚙️ Technology stack:
• Frontend: React Native for mobile applications, React.js for web version.
• Backend: Node.js (or NestJS for more structured code).
• DevOps: Docker, CI/CD for simplified deployment and monitoring.
• Security: Data encryption, OAuth2.0 authorization, integration with external payment providers.
📄 NDA ready
We value confidentiality and are ready to sign a non-disclosure agreement to study your business process in more detail and propose architecture and UX prototypes that meet all your requirements.
We are ready to discuss service costs and look forward to your response for further details.
Budget: 15000 EUR Deadline: 60 days
Hello, my name is Emil, I have 5 years of experience in development, specializing in comprehensive implementation of mobile and web platforms.
I will create a mobile application for iOS and Android using Flutter — this will allow for quick deployment of a cross-platform solution with a single codebase. Also, backend development on Node.js, database architecture, and integration with third-party APIs (payment systems, SFTP printing and mailing services).
I am ready to sign an NDA to receive a detailed description of the logic and business processes. After familiarization — we can prepare a technical proposal, timeline, and estimate.
I would be happy to discuss the project details!
Budget: 15000 EUR Deadline: 12 days
Hello, my name is Alexander, I am from Ukraine (UTC +2)
For more information about my skills, visit my portfolio.
You can be confident that I will provide you with a quality application to receive a positive review from you.
Your project quite interested me because working on such projects is a great pleasure for me and because I have over 8 years of development experience.
I have worked as an Android developer in a small company in Kharkiv, where I improved my skills. I also worked as a Flutter developer remotely in a team for a company.
I have experience in:
- Flutter, Dart
- Java, Kotlin
- Android SDK
- Retrofit, Dagger2, Coroutines + Flows,
- ViewBinding/DataBinding + ViewModel + LiveData
- Navigation architecture component
- MVVM Clean architecture
- Work Manager
- Room
- Paging Library
- Firebase, Google Cloud, AWS, GraphQL, Stripe
- Linux, Unix
- Git, Gradle and so on
Budget: 15000 EUR Deadline: 90 days
Hello! I have relevant experience and am ready to start the project. I guarantee quality and deadlines. Shall we discuss the details?
Best regards,
David
Budget: 15000 EUR Deadline: 45 days
Hello.
I can implement everything.
Over 10 years of experience in development.
Budget: 15000 EUR Deadline: 90 days
Hello.
I'm excited about the opportunity to help build your cross-platform mobile and web solution for digitized paper mail delivery.
I have solid experience in React Native, Node.js, and integrating external APIs, including payment systems and secure SFTP services.
I understand the importance of GDPR compliance and can ensure your app is secure, scalable, and ready for MVP testing.
I’m also open to signing an NDA and collaborating closely to bring your vision to life.
Looking forward to your response.
Budget: 15000 EUR Deadline: 90 days
Good day!
My name is Dmytro, I represent the KingKongWeb team. We are ready to undertake the development of your mobile application and web version for creating, paying for, and sending paper letters through a digital platform.
✅ Our advantages:
Experience in developing mobile applications for iOS and Android using technologies such as React Native and Flutter.
Strong backend with Node.js and integration with payment systems.
Professional setup of secure and scalable solutions for data storage (GDPR).
Experience working with external API integrations and connecting to various services such as SFTP for sending letters.
✅ What we can provide:
Development of an MVP mobile app to test core functions.
Integration with external payment providers (bank cards, PayPal, Apple Pay / Google Pay).
Creation of a personal account with sending history and convenient settings.
Full data security and GDPR compliance.
Product scaling and feature expansion in the future.
We work with large and small projects and are ready for long-term cooperation. If you are interested, we await details to start work. Ready to sign an NDA and begin development!
Best regards,
Dmytro, KingKongWeb
Budget: 15000 EUR Deadline: 31 days
Good morning,
I’m Patryk Samson, co-owner of WebyJuice, a Poland-based agency registered and issuing VAT invoices. We’re excited to develop your MVP for a cross-platform mobile app (iOS, Android) and web version, enabling users to create, pay for, and send paper letters via a digital platform.
We’ll deliver:
- User registration and account management.
- Letter creation, management, and design customization (e.g., logo upload).
- Payment integration (cards, PayPal, optional Apple Pay/Google Pay).
- SFTP connection to external printing and mailing services.
- User panel with shipment history.
- GDPR-compliant data security.
- Tech stack: React Native for mobile, React.js for web, Node.js backend, and external API integrations.
WebyJuice has extensive experience in building scalable apps, including our current project, a P2P (peer-to-peer) app (iOS, Android, web), nearing completion across the EU. We’ve also delivered solutions for premium brands like Jaguar, Porsche, BMW, Hymer, Land Rover, Mini, and Toyota. Explore our portfolio at: https://webyjuice.pl/portfolio.
We’re ready to sign an NDA to review detailed business processes and start building your MVP for testing, with scalability for future features. Please share your timeline and NDA details in a private message, and let’s discuss how we can bring your vision to life ASAP!
Budget: 15000 EUR Deadline: 40 days
Hello, ready to help with full-stack development. Extensive experience in React Native, React, Node
Suggest discussing the details in private messages
Budget: 15000 EUR Deadline: 60 days
Hello! I am ready to offer the implementation of a mobile application (iOS and Android) on Flutter with a unified codebase, as well as a web version on React.js. The server part is on Node.js with a modular architecture, which will ensure scalability and flexibility in the future.
Within the MVP, the following will be implemented:
- registration and account management;
- creation, payment, and tracking of letters;
- integration of payment systems;
- connection to an external printing service via SFTP;
- personalization of letters with logos;
- GDPR compliance.
How many language versions will there be?
I would be happy to join the implementation!
Budget: 15000 EUR Deadline: 30 days
Hello. I have extensive experience with React/Node.js. Ready to collaborate
Budget: 15000 EUR Deadline: 90 days
Hello.
I have familiarized myself with the task.
Please write to me in private messages to discuss all the project details!
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Private web developer. Experience – 9 years.
Design, layout, development of WordPress websites.
