Five Leaf Digital

Case Study

LiftLegends

Live iOS fitness app. Gamified workouts, in-app purchases, AI-generated training plans.

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Role
Lead: Five Leaf Digital
Team
Engineering + design in-house
Stack
React Native, Django, Claude API
Status
Live on iOS
Live
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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.

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