iPhone app
Log. Progress. No excuses.
GymBum is your gym notebook. Open the app, see today's workout and log every set with a tap. Your data stays on your phone.
- No account
- No ads
- Works offline
- English and Spanish
Everything you need at the gym
And nothing that wastes your time between sets.
Know what's next
The Today screen shows your workout for this day of the week and what you've done so far.
Sets in seconds
Target weight and reps pre-filled. Adjust with − and + and check it off. Every set is saved instantly.
Double progression
Hit the top of your rep range and GymBum tells you to add weight to that set.
Rest timer
Alerts you when rest is over, even with your phone locked, with or without sound.
242 exercises
Library by muscle with photos and technique cues. Add your own.
Weight and calories
Body weight chart, BMI, reference weight and calorie estimates.
Take a look
Built for one-handed use, between sets.
Your data is yours
GymBum has no servers. Everything you log is stored only on your iPhone, and you can move it to another phone with a backup file.
Read the privacy policy →- We collect no data at all
- No accounts or sign-ups
- No ads or trackers
- Backup to a single file
FAQ
More help on the support page →
How much does it cost?
GymBum is free.
Do I need an internet connection?
No. The whole app works offline.
Does it come with routines?
Yes: 4- and 6-day PPL, 3-day full body, 4-day upper/lower and a no-equipment home plan. You can also build your own.
How do I move my data to another phone?
In Settings → Backup, export a file and open it on the other phone from the same screen.
Get in touch
Questions, bugs or ideas for the app. I'll reply personally.