Your training, on your terms.
A training log for iPhone and Apple Watch that shows what’s improving, tells you what to lift next, and keeps every set on your devices.
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No servers to send it to. Your training stays on your iPhone and Apple Watch.
- What to train today
- What’s improving
- What to lift next
Real screens, example data.
Log any set in seconds.
Everything between your sets is one tap. Nothing else.
- Muscles as you goSee what this session has worked, set by set.
- Last time, one tap awayYour previous weight and reps fill each empty set.
- One tap per setDone means done. No forms, no save button.
- Rest starts itselfTick a set and the timer runs. Nudge it or skip it.
Weight and reps, bodyweight, time or distance. Forgot to log? Add it afterwards, or link the workout your Watch already recorded.
- 175+
- exercises
- 690+
- variants
- Every one
- tagged by the muscles it works
Every workout. One calendar.
Your runs, rides and swims from Apple Health sit right next to your lifting. Nothing to import, nothing to retype.
When a workout lands from your Watch, Gym0 recognises which saved workout it was, learning from the ones you’ve tagged, and asks you to fill in the sets.
- MonPush6 exercises · 52 minGym0
- TueRun5.2 km · 28 minApple Health
- WedLegs5 exercises · 61 minGym0
- ThuRest
- FriPullRecognised from a Watch workoutApple Health
- SatRide24 km · 55 minApple Health
Your Watch counts the reps.
Start a saved workout on your wrist. Gym0 detects each set and estimates reps from wrist motion, shows your heart rate as you go, and saves the workout to Apple Health.
On your iPhone, a Live Activity follows along on your Lock Screen and in the Dynamic Island, so you can pause or end a set without unlocking.
Progress you can prove.
Not just a pile of logs. Gym0 turns every set into proof: new personal bests, a rising one-rep max, and how your heart handles the work, from effort per set to how fast you recover.
It compares your saved workouts side by side, so you can see which one is moving and which one needs you.
- Personal bests
- Bench Press · 90 kg × 5
- Every new best, the day you set it.
- Estimated 1RM
- +28.5 kg in 9 weeks
- Charted for every weighted lift.
- Heart-rate recovery
- Faster than your last 8 Push days
- How quickly you bounce back between sets.
- Training load
- Weekly, by heart-rate zone
- Effort across a saved workout, week by week.
- Movement balance
- Push vs pull, squat vs hinge
- Spot the pattern you’ve been skipping.
- Saved workouts compared
- Legs: 3 new bests in 8 weeks
- Which routine is moving, and which needs you.
Your devices. Not our servers.
No account to make. No servers to send your training to. Your workouts live on your iPhone and Watch, Health data stays in Apple Health, and you can erase Gym0’s data at any time.
Even the smart parts stay home. Guessing today’s workout, forecasting your next best set and writing summaries all learn from your history on your iPhone.
Read exactly where your data goes · The principles we build by
- Apple Watch
- iPhone
- Apple Health
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Also in Gym0
- Saved workouts and plans
- Routines with targets, on your calendar.
- Today’s suggestion
- Learns your rotation and lines up what’s next, on your Watch too.
- Muscle map
- What you’ve trained recently, and what’s falling behind.
- Next-time targets
- What to lift next session, from your own increments.
- New-workout prompts
- Asks what you did when a workout lands in Apple Health.
- Overdue lift reminders
- An optional nudge for the exercise that needs attention.
- On-device summaries
- Optional, written by Apple’s on-device model.
- Your units
- Kilograms or pounds, with your own plate and machine increments.
Coming soon to the App Store.
Free to download, with optional paid features. For iPhone on iOS 26.5 or later, with Apple Watch if you have one.
Questions in the meantime? support@aneeshpatne.com