Engineering & Business Guides
Concrete architecture and financial realities.
How much does it cost to build a fitness app in 2024?
A brutal breakdown of the real costs: engineering, design, API fees, and maintenance.
Integrating Apple HealthKit: The Right Way
Stop asking for all permissions on launch. How to build trust and sync data reliably.
Retention: Why your fitness app bleeds users
Guilt doesn't work. How to use streaks, periodization, and social hooks correctly.
Designing a Database Schema for Workouts
Workouts are hierarchical. If you mess up the schema early, migrations will kill you.
ASO for Fitness Apps in 2024
How to rank for keywords when 'workout app' is dominated by billion-dollar companies.
Monetization: Subscriptions vs. One-Time Purchases
Why VCs hate lifetime deals and why users love them.
Building for WatchOS: The Constraints
Memory limits, battery drain, and why your UI needs to be massive.
Building a Community That Isn't Toxic
Moderation, leaderboards, and why relative progress beats absolute numbers.
Offline-First Architecture in React Native
WatermelonDB, Redux Offline, and handling network partitions.
Gamification Beyond Badges
Why users ignore digital trophies and what actually drives behavior.
The Only 4 Metrics That Matter
Stop looking at vanity metrics. What investors actually care about.