Help needed with mobile app for API and React Native

If calls are made through a SIM card on an iPhone, it is necessary to automatically transmit information about incoming/outgoing calls to the CRM.

Looking for a developer (or a small team) for long-term collaboration on the TennisBRO project. TennisBRO is a mobile application for tennis enthusiasts. The main goal of the MVP is to simplify the organization of amateur tournaments and the search for playing partners as much as possible. Currently, the project is at the MVP development stage. In the future, there are plans to develop it into a full-fledged ecosystem for the tennis community, but right now only the first version needs to be implemented.Main functionality of the MVP User registration and authorization. Player profile. Creation and conduct of amateur tournaments. Registration of participants for tournaments. Formation of a list of participants. Tournament management by the organizer. Display of the tournament bracket and results. Search for playing partners (singles and doubles matches). Ability to create an open game that other users can join. Push notifications. Built-in chat (if feasible within the MVP).What is important We need exactly the MVP, without unnecessary features. The application should be easy to scale in the future. Clear architecture and quality code are important. Preferably using cross-platform technology (Flutter or React Native), but I am open to your suggestions.Please include in your response What stack you propose for development. Preliminary cost. Implementation timeline. What features are included in the specified cost. Experience in developing similar mobile applications. Examples of completed projects. If additional information or a more detailed technical assignment is needed for evaluation, I am ready to provide it after discussion.

AI Talent Assistant AI assistant for automatic application submissions to brands, agencies, castings, and employers.Goal To create an AI assistant that fully takes over the process of sending portfolios and managing initial correspondence until a collaboration offer is received. The main task is to free creators, models, actors, and other specialists from manually sending dozens or hundreds of applications.Target Audience UGC Creators Content Creators Influencers TikTok Creators Instagram Creators YouTube Creators Models Actors Voice-over Artists Photographers Videographers Makeup Artists Any specialists who need to regularly send their portfolio.Main Workflow ScenarioStep 1 The user registers.Step 2 Uploads information about themselves once. For example: name country city languages email phone social media links media kit portfolio photos videos CV resume price list work experience collaboration categories After that, the user does not fill out anything else.Step 3 The user selects the search direction. For example: brands UGC TikTok Instagram Amazon acting castings model agencies film advertising series TV eventsStep 4 The AI independently: finds suitable vacancies; finds emails; finds submission forms; determines requirements.Step 5 The AI automatically sends the application. For example: personalized letter; attaches portfolio; attaches CV; attaches photos; attaches links.Step 6 All responses are automatically collected in one place. The user does not have to check dozens of mailboxes.Step 7 If an additional question comes in, the AI analyzes the message. For example: Send more photos. What is your experience? Do you have work rights? What is your rate? The AI: understands the meaning; offers a ready response; either automatically replies if the question is standard; or sends a notification to the user.Step 8 If a user response is needed, the assistant writes: Need to answer 2 questions. After receiving the answers, it automatically continues the correspondence.Personal Account The user sees: Number of sent applications Responses received Opened letters Invitations Interviews Rejections Active correspondences Successful dealsCRM Each application has a status. For example: Created Sent Read Response received User action needed Interview Negotiations Contract Successful RejectionAI Functions The AI must be able to: ✔ analyze job requirements; ✔ understand if the user is suitable; ✔ adapt the letter for a specific company; ✔ change the tone of communication; ✔ respond to standard questions; ✔ remind about follow-ups; ✔ automatically send follow-ups after 5–7 days if there is no response.Telegram It is preferable to implement the work through Telegram. The user communicates with the assistant as with an ordinary person. For example: Find me 50 new brands today. or Send my portfolio to the Los Angeles castings. or What new responses have come?In the Future In the long term, the system should support: Gmail Outlook Telegram WhatsApp Instagram Direct LinkedIn brand websites casting platforms model agencies CRMMVP (First Version) For the first version, it is enough to have: Telegram bot; one-time profile upload; contact database; automatic letter generation; mass email sending; response collection; AI analysis of incoming messages; reminders to the user if their participation is required.

Below is an example of a detailed technical specification for the development of a mobile application. Text composition Technical specification Project Mobile application for random communication (roulette) Platforms: Android iOS 1. Purpose of the project Create a modern mobile application for dating, communication, and finding conversation partners based on random selection (Chat Roulette), with the ability to filter users by specified criteria. The application must support: text chat; voice chat; video chat; instant switching to the next conversation partner; search by interests; search by country; search by language; search by gender; search by age; advanced filters; moderation system; administrative panel. 2. Types of communication Text chat Features: message exchange; sending Emoji; GIF; stickers; photos; videos; documents; voice messages; message deletion; message editing; reply to message; forwarding messages; pinning messages. Voice chat Features: call to one user; random voice partner; Next switch; microphone mute; volume adjustment; call recording (if permitted); noise cancellation; HD Voice. Video chat Features: Full HD 2K 4K (if device supports) Functions: camera switching; background blur; virtual background; video off; screen sharing; recording; screenshot; picture-in-picture mode; instant Next switch. 3. Roulette principle The user presses the button Start After which the system automatically selects a random conversation partner. There are buttons Next Pause Stop If there are no matches, a message is displayed "Searching for a partner..." 4. Search filters Age 18–25 25–35 35–45 45+ Gender male female any Country Any country in the world City Optional Language All major languages Interests music movies travel sports programming cars games animals medicine business politics education any custom tags Online currently online recently online Type of communication text voice video 5. Registration Registration methods Email Google Apple ID Facebook Telegram phone number anonymous mode Verification Email SMS CAPTCHA 6. User profile Photo Video Name Nickname Age Gender Country City Interests Languages Description Status Registration date Last online Verification Rating 7. Personal account Communication history Favorite users Black list Settings Notifications Premium subscription Purchases Payment history 8. Premium No ads Priority search Region selection Advanced filters Unlimited likes Unlimited switches HD video VIP badge Invisible mode 9. Monetization Subscription One-time purchases VIP Gifts Coins Advertising 10. Administrative panel User management Blocking Deletion Photo moderation Video moderation Message moderation Viewing complaints Statistics Online Income Payments Push notifications News Banners Application settings Logs Backup 11. Complaint system Report Reasons: spam fraud insults pornography violence minors advertising other 12. Security SSL HTTPS Message encryption Two-factor authentication CAPTCHA Anti-spam Anti-bot VPN/Proxy detection Automatic moderation AI moderation 13. Push notifications New message Missed call New partner Response to complaint News Updates 14. Technologies Frontend Flutter or React Native Backend Node.js NestJS Database PostgreSQL Redis File storage Amazon S3 Video and voice WebRTC Push Firebase Cloud Messaging Apple Push Notification Service Admin panel React Vue.js 15. Performance Time to find a partner up to 3 seconds. Support for at least 1,000,000 registered users. Up to 100,000 users online simultaneously. 16. Additional features Real-time message translation Voice translation AI assistant Automatic speech recognition Automatic subtitles Augmented reality (AR) masks Background blur Virtual rooms Group video chats Streaming Create your own rooms Invite friends Profile QR code Dark and light themes Multilingual interface Built-in analytics system 17. Compliance requirements The application must comply with the requirements of Google Play and Apple App Store, as well as ensure the protection of personal data (GDPR) and support user consent for data processing. This technical specification serves as a basis for commercial development. If necessary, it can be expanded into a full document of 100–150 pages with UX/UI prototypes, database architecture, API, screen layouts, user roles, moderation system, monetization, AI matching of partners, and detailed descriptions of each section.