GainFrame: AI fitness coach that reads progress photos, $2,335 MRR
GainFrame is an iOS app that estimates body fat and muscle from progress photos, tracks changes over time, and adds an AI coach with a personal action plan. It earns $2,335 in monthly recurring revenue from 462 subscriptions, verified through RevenueCat. A small, solo-operable app in a fitness niche where AI still has room.