How-to
How to build a fitness app in 6 steps
Workouts, tracking and streaks: ship a fitness MVP users open daily.
Fitness apps live or die on the daily loop. Design the workout view first — big timers, clear next-exercise cues, minimal taps with sweaty hands.
Add tracking second: log sets, chart progress and celebrate streaks. History is the feature that brings people back tomorrow.
Then layer on programs and plans, social accountability, and reminders. Build the loop, then widen it.