Case Study
LiftLegends
Live iOS fitness app. Gamified workouts, in-app purchases, AI-generated training plans.
Visit live
Visit live
- Role
- Lead: Five Leaf Digital
- Team
- Engineering + design in-house
- Stack
- React Native, Django, Claude API
- Status
- Live on iOS
- Live
- Visit
The problem
Most fitness apps either feel like a spreadsheet with a workout attached, or they lean so hard into gamification that the actual training gets lost. LiftLegends needed to hold both at once: real progressive-overload programming that a serious lifter would trust, wrapped in a game loop compelling enough to keep a beginner opening the app every day.
The build
Built in React Native with a Django API handling plan generation, progress tracking, and in-app purchase validation. Training plans are generated with the Claude API and adapt week to week based on logged performance, not a static template. Gamification elements — streaks, XP, unlockable content — sit on top of the training engine rather than replacing it.
The result
LiftLegends is live on iOS and has been iterating with real users since launch, with in-app purchases live and generating revenue.