I have a niche ChatGPT project that I now want to package into an individual , polished mobile experience. The apps must run smoothly on both iOS and Android, based on my prompts, present the GPT in a clean, visually engaging interface, and keep everything locked behind a secure login. Scope of work – Design an intuitive GUI, in line with modern mobile standards, that highlights the GPT while maintaining a consistent brand look and feel. – Build the mobile application (React Native, Flutter, or native Swift + Kotlin are all acceptable) and connect it to the OpenAI Chat Completion API using the prompts and rules I provide. – Implement authentication that a magic-link “single login” emailed to the user, and optional two-factor authentication. Smooth session handling. – Add a lightweight admin view—web-based or in-app—so I can create new GPT tools, manage user access, and review basic usage stats without touching the code. Deliverables (must-have) • Store-ready iOS and Android builds with all ChatGPT projects integrated • Figma (or similar) design files plus implemented responsive UI • Secure auth layer: email/password, magic-link login, and optional 2FA • Admin interface for user & GPT management • Clean, well-documented source code and deployment instructions - Must allow for upload of photos and must maintain memory of conversations. This GPT will analyze and give reports and suggestions to people who are working out and trying to either Bodybuilder or, tone up, etc. whatever they are Fitness goals are. They will upload a picture when they start and then every day upload a new picture after they’ve worked out and tell it with work out they’ve done and it’ll keep a record of that and then also based upon their request that goals, it will tell them what to do in their next workout and what to do on their days off. It’ll also show them where they’re improving and where they need to focus. (I have several GPT‘s projects that I use that I want to turn into apps that other people can use) There will be two versions. There will be a Jim version, where gym owners and trainers will be able to start a chat with a person‘s name, take a picture of that person, and then do the analysis with AI based on the prompts… And the app will remember that person so that the next time it uploads a picture it will continue the “conversation“ but the gym version he will be able to do multiple people. And then there’s an individual use version for individual use. And the AI will only focus on that individual who is the user.. Acceptance criteria 1. New users can register, receive a verification or magic-link email, enable 2FA, and log in on real devices without issues. 2. Each chat screen loads my preset prompt, sends requests to OpenAI, and returns responses within five seconds under normal network conditions. 3. iOS and Android builds pass App Store / Play Store automated checks with no critical warnings. 4. There should be able when they sign up to do a monthly subscription. This should be in USD and Kenyan Shillings (or all currencies). Once these checkpoints are met and the code is handed over (with instructions on how to post and provide to the end user), the project is considered complete. Let’s discuss your preferred tech stack, timeline, and any clarifications you need to get started.