Health & FitnessMobile

FitPro: Mobile Fitness Tracking & Workout Engine

Engaging cross-platform mobile app featuring audio-guided workouts, exercise tracking, Apple Health sync, and recurring in-app subscriptions.

The Business Challenge

Needed a fluid mobile workout experience that works reliably in gym basements without consistent cellular connectivity.

Built a React Native app with local video caching, offline workout logging, and seamless StoreKit/Play Billing subscription flows.

Capabilities Implemented

Offline workout player with downloaded video and audio guides

Custom interval timers with Apple Health and Google Fit calorie sync

Monthly and annual in-app auto-renewing subscriptions

Community activity feed and milestone achievement badges

Technical Stack & Foundation

React Native with Expo, Node.js API backend, MongoDB user profiles, and RevenueCat in-app subscription management.

React NativeExpoNode.jsMongoDBRevenueCatAWS CloudFront

Impact & Return

Delivering tangible business value through robust software engineering and data clarity.

Over 50,000 active app downloads within first 6 months

App Store rating of 4.9/5 stars with over 1,200 reviews

Flawless offline execution praised as top user feature

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