From LunaFit to Stupid Simple Macro Tracker, here are the top fitness and health apps to help you track macros, calories, and workouts effectively in 2025.

I never planned to build an app, especially as someone with zero tech skills. But when COVID forced my gym to go digital, I saw an opportunity to help people beyond our four walls. That’s how the LunaFit app was born. This is the honest story of how I went from non-tech founder to launching a growing fitness app—one step, one lesson at a time.