Train smarter.
Get stronger.
GymusMaximus is your strength-training log – fast to use in the gym, no account, no ads. Your data stays on your iPhone.
Coming soon to the App Storefor iPhone and Apple WatchWhat it does
Plans & routines
Build your own plans in three steps or start from a template that fits your goal. Routines rotate automatically.
Built for the gym
Check off sets, adjust weight with a tap, rest timer with a gong – even when your iPhone is locked.
Records & progression
Every personal record is spotted instantly, and the app suggests how to progress next time.
Muscle map
See at a glance which muscles you trained and which are still recovering.
Apple Watch & Lock Screen
Rest timer and sets on your wrist, Live Activity on the Lock Screen, workouts saved to Apple Health.
Your data is yours
Everything stays on your iPhone, automatic backups, export as CSV or PDF, import from Strong and Hevy.
Support
Questions, bugs or ideas? Write to me – I reply personally.
Where is my data stored?
Only on your iPhone (and, during a workout, on your Apple Watch). There are no user accounts and no servers. See the privacy policy for details.
How do I back up my workouts?
The app creates a backup automatically after every workout. Under Settings → Data you can also share a backup file, e.g. to iCloud Drive, and restore it later.
Can I switch from Strong or Hevy?
Yes. Export your workouts from Strong or Hevy as CSV and import the file into GymusMaximus under Settings → Data.
I got a new iPhone – now what?
If you transfer your iPhone via iCloud or computer backup, your data comes along. Alternatively, share a backup file on the old iPhone and import it on the new one.