AI Fitness App for iOS and Android

We're building REV Fitness — a cross-platform mobile fitness app inspired by Apple Fitness+ but tailored with unique features like AI coaching, guided workouts, subscription tiers, and an in-app store.

We already have:

✅ Complete Figma UI/UX (clean and modern design)

✅ A PDF spec outlining all premium features (AI assistant, video, challenges, merch, and more)

✅ A list of reference GitHub repos to guide the build

We Need a Developer (or Team) to Build:
✅ A fully functional mobile app (iOS + Android) using:

React Native (Expo) for the frontend

Firebase (Firestore, Auth, Functions, Storage)

Stripe integration for subscriptions & in-app purchases

Mux or Vimeo for video workout streaming

OpenAI GPT-4 API for AI coaching (Workout Buddy)

Zoom or Jitsi SDK for optional 1-on-1 coaching

Role-based access control for Freemium/Core/Elite/Family tiers

Community module (forum or comment threads)

Simple in-app merch store (Stripe Checkout or Shopify integration)

Bonus Skills:
Experience deploying via Expo EAS

Familiarity with Apple HealthKit / Google Fit

Understanding of CI/CD, analytics, and app performance

Deliverables:
MVP app with all Core/Elite tier features implemented

Clean, scalable codebase

Firebase backend with secure rules

Stripe and AI integrations fully working

App store-ready Expo builds

To Apply, Please Include:
A few live apps or repos you’ve built (preferably health/fitness)

Your preferred stack/tools for building a scalable mobile app

Estimated timeline for MVP

If available, mention experience with Mux, Stripe, or OpenAI

Attachments:

Figma design link

PDF feature spec

GitHub references with feature breakdown