# Product Requirement Document (PRD) ## 1. Executive Summary & Vision An AI-powered mobile fitness application designed for busy professionals to generate personalized workouts and log meals via camera recognition. ## 2. User Personas & Key Workflows - Working Professional: Generates quick 20-minute bodyweight routines and tracks daily calorie intake. - Fitness Coach: Reviews client logs and adjusts weekly training targets. ## 3. Functional Requirements - AI Workout Generator: Customizes routines based on available equipment and time constraints. - Computer Vision Meal Logger: Identifies food items from smartphone photos to calculate macro nutrients. ## 4. Recommended Tech Stack - Frontend: React Native (Expo) - Backend: Python (FastAPI), PyTorch / OpenCV for image processing - Database: Supabase (PostgreSQL) - Cloud/Hosting: AWS Lambda, Firebase Auth ## 5. Phased Roadmap & MVP Definition - Phase 1 (MVP): Basic workout generator and camera meal tracker. - Phase 2: Wearable device integration (Apple Health, Garmin) and gamified habit tracking.