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Boxing Timer - MMA & Interval app icon

Boxing Timer - MMA & Interval

Boxing Timer is the complete round timer for boxers, MMA fighters, HIIT athletes, and martial artists. Fast, precise, and deeply integrated with iOS.

Get it on the App Store
Version 3.3.0 Updated 2026-09-23 Requires iOS 17.0 Size 7 MB Price Free

What it does

Live Activity & Dynamic Island

While you train, the current phase and time remaining stay on your Lock Screen and in the Dynamic Island — no need to unlock your phone mid-round.

Apple Watch

Start, pause, and skip rounds from your wrist. The timer stays visible on your watch during the whole workout.

23 Built-In Presets

Amateur & Pro Boxing, Sparring, MMA Standard & Championship, Kickboxing, K-1, Muay Thai, BJJ, Tabata, HIIT 30/30 & 40/20, EMOM, AMRAP and more.

Custom Timers

Build any round/rest/prep combination with warning bells, then save your presets to reuse them anytime.

Training History

Every completed session is saved automatically: rounds, duration, and totals. Track your weekly training chart and day streak.

Precision Timing

  • Wall-clock accurate, keeps running with the screen locked
  • Round bells, warning beeps, and haptic feedback
  • Bell styles: classic bell, air horn, gong
  • Screen stays awake during your workout

Boxing Timer Pro

  • No ads
  • Unlimited saved presets
  • Pro bell sounds: air horn and gong
  • Advanced stats: weekly chart and day streak

Questions people ask about Boxing Timer - MMA & Interval

Does the timer keep running with the screen locked?
Yes. The round and the time left stay on the Lock Screen and in the Dynamic Island, and the bell sounds anyway.
Does it work offline?
Yes, completely. No account and no sign-up either.
Boxing only, or other sports too?
Any round or interval work: boxing, MMA, Muay Thai, kickboxing, BJJ, HIIT, Tabata, EMOM, AMRAP, circuits.
Can I set my own round and rest times?
Yes, in five-second steps, along with the number of rounds and the warning before the end of the round.
Does it need an Apple Watch?
No. If you have one you can start, pause and skip from your wrist, but the app works on the iPhone by itself.
Will it play over my music?
Yes. The bell and the voice cues come in over whatever you are listening to.

What's new in 3.3.0

You can now set round and rest times in five-second steps instead of ten. A 45-second rest or a 95-second round was simply not possible before; a review from Russia said so plainly in August and it was right.

Privacy and support

Boxing Timer - MMA & Interval works offline and does not require an account. Read the privacy policy and the terms for this app, or write to us if something is wrong.