Apps like Half Marathon Trainer: 21K Run
15 alternatives to Half Marathon Trainer: 21K Run in Health & Fitness, ranked by our opportunity score from live revenue and download estimates — updated continuously, not a static list.
Planet FitnessHealth & Fitness · $3.9M–$22M/mo
Strava: Run, Bike, WalkHealth & Fitness · $3.3M–$11M/mo
MyFitnessPal: Calorie CounterHealth & Fitness · $930k–$5.0M/mo
Simple: AI Weight Loss CoachHealth & Fitness · $900k–$4.8M/mo
Workout for Women: Home & GymHealth & Fitness · $890k–$4.8M/mo
Flo Cycle & Period TrackerHealth & Fitness · $780k–$4.9M/mo
StepUp Pedometer Step CounterHealth & Fitness · $820k–$4.4M/mo
CalmHealth & Fitness · $740k–$4.7M/mo
Google Health (Fitbit)Health & Fitness · $690k–$4.4M/mo
LADDER Strength Training PlansHealth & Fitness · $640k–$4.1M/mo
MacroFactor - Macro TrackerHealth & Fitness · $620k–$4.0M/mo
Cal AI - Calorie TrackerHealth & Fitness · $550k–$3.5M/mo
Peloton: Fitness & WorkoutsHealth & Fitness · $540k–$3.4M/mo
AllTrails: Hike, Bike & RunHealth & Fitness · $700k–$2.3M/mo
Unchaind: Overcome LustHealth & Fitness · $550k–$3.0M/mo