10 sports, all built in
Boxing
12 × 3:00 / 1:00 rest
BJJ
5 × 5:00 / 1:00 rest
MMA
3 × 5:00 / 1:00 rest
Muay Thai
5 × 3:00 / 2:00 rest
Kickboxing
3 × 3:00 / 1:00 rest
Karate
3 × 2:00 / 1:00 rest
Taekwondo
3 × 2:00 / 1:00 rest
Wrestling
3 × 2:00 / 0:30 rest
Judo
4 × 4:00 / 1:00 rest
HIIT / Tabata
8 × 0:20 / 0:10 rest
Why Dojobell
Free, forever, no ads
The whole app. No paywall on rounds, no banners between sets, no trackers — funded by nothing.
Lives in the Dynamic Island
iOS Live Activity shows your round + countdown right at the top of the screen. Lock the phone — it's still there on the lock screen.
Make it yours
Drop in your team logo for the home header and a custom photo for the timer background. The WORK / REST / GET READY phase colours fade through your image.
Custom presets
Long-press any preset to edit. Or tap "+ NEW PRESET" to build your own — rounds, work, rest, prep, name. Saved on-device.
Built for the gym
Bell rings on the lock screen and on silent. Vibration on phase transitions. Keep-screen-on while a round is live so you can glance from the mat.
Survives a backgrounded phone
The timer keeps ticking and the bell still rings if you switch apps or your screen locks mid-session. No "wake the phone to check" surprise.
About Dojobell
Dojobell is a Kotlin Multiplatform app for iOS and Android, built by CreatorsJourney AS. It started as the timer the founder couldn't find: free, ad-free, accurate, with the round counter actually visible while the phone is locked.
No accounts, no analytics, no tracking. Everything you set lives on your device. The default sport presets are tuned to standard amateur formats; rewrite them in seconds.
Free content: all 10 sport presets, custom presets, team logo, background image, vibration, sound, Dynamic Island Live Activity, lock-screen banner.