
RepZen: Rep Counter & Coach
Auto rep counting & AI coach
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Free
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About
RepZen automatically counts your bodyweight workout reps using your Apple Watch's motion sensors — no taps, no fumbling with your phone.
Push-ups, sit-ups, squats, pull-ups, jumping jacks, lunges, and more. RepZen picks the right motion signal for each exercise, so it counts the way the movement actually happens.
A hands-free voice coach calls out every rep and cheers you on, narrates your countdown and rest periods, and auto-advances through your plan — all from your wrist. Add music from your iPhone and it plays while your Watch does the counting.
• Automatic rep counting from Apple Watch motion
• Voice coach: spoken counts, encouragement, narrated rest
• Build workout plans with sets, reps, and rest
• Per-exercise sensitivity tuning with on-screen guidance
• Syncs workouts to Apple Health
• No accounts, no ads — your data stays on your device
Put your phone down. Just move. RepZen keeps count.
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What's New in RepZen
0.0.7
August 9, 2026
• More reliable rep counting — especially pull-ups • Cleaner Watch workout screen that fits every Apple Watch size • Work out on iPhone even without a Watch • Music, podcasts & news during workouts • More languages, a coach intro, and a safety disclaimer • Various fixes and polish
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