AI Fitness Coach
Overview
AI Fitness Coach is an AI-powered fitness coaching app for iOS and Android. It generates personalized workout programming for each user, tracks progress in real time, and offers tiered subscriptions (Free/Pro/Elite) that unlock more advanced coaching features. The app is built bilingually in Croatian and English.
The core challenge was making AI-generated workout programming feel genuinely personal — adapting plans to each user's level, goals, and progress data rather than serving generic templates. On top of that, the subscription tiers required careful feature gating, and supporting two languages from day one meant every screen and workout description had to work cleanly in both Croatian and English.
Mobile: React Native with Expo
Backend: Supabase
Language: TypeScript