Box Timer: Interval Timer
Boxing, MMA, Muay Thai & Judo
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Coaches, create workouts and share them with your students in a tap. They get your plan and start training. All features stay free!
Box Timer is a customizable interval and round timer for boxing, kickboxing, Muay Thai, MMA, BJJ, karate, taekwondo, and judo. Use it for shadowboxing, bag work, technique drills, HIIT, or your own training routine. Set the exercises, work intervals, rest periods, and repeats to fit your session.
No ads. No paywall. No subscriptions.
A QUICK TIMER THAT REMEMBERS YOUR SETTINGS
Configure your everyday session once and return to it whenever you train. Set preparation time, boxing rounds, rest, and repetitions, then press Start. You do not need to create a saved workout to use the timer.
BUILD AND SAVE YOUR OWN WORKOUTS
Create separate presets for different training days, disciplines, or goals. Combine exercises, preparation, rest, cooldowns, and repeat blocks in your own sequence. Adjust each step's duration and repeat groups of steps instead of adding them individually. Save your routines and reuse them for your next session.
CHOOSE FROM 288 EXERCISES — OR CREATE YOUR OWN
Browse exercises for striking, grappling, warm-ups, and cooldowns. Search for a drill and add it to your workout. Create custom exercises when you need something different, with your own name, description, and optional photo or video link.
CUSTOMIZE EACH EXERCISE
Change exercise names to match your drills and combinations. Choose an icon and color for each exercise so you can recognize it during training. Set individual durations and arrange the sequence around the way you train. Give saved workouts their own icons and colors to distinguish your routines.
MANAGE YOUR SESSION WITH A TAP
Tap an exercise icon to open its actions. View exercise details, move a step, duplicate it, or copy and paste it into your session. Build longer routines from the drills you already configured.
FOLLOW EVERY ROUND
The active timer shows your current exercise, its remaining time, the next step, and the time left in the session. See your progress through the workout and use sound assistance with your chosen round bell. Pause and resume, restart, or move forward and back through the sequence when your session changes.
KEEP YOUR TIMER IN VIEW
Follow an active workout with Live Activities on the Lock Screen and Dynamic Island. Use Home Screen and Lock Screen widgets to access and control your session.
CHOOSE YOUR APP'S APPEARANCE
Use light mode, dark mode, or follow your system appearance. Pick an accent color for the main action buttons. Customize exercise and workout icons separately, and unlock alternative app icons as you train.
REVIEW YOUR COMPLETED SESSION
See completed rounds and segments, active time, rest time, total duration, and skipped time. The workout summary also includes an estimated calorie burn.
Use the quick timer for your regular rounds or build a saved workout with different drills and intervals. Box Timer gives you control over the sequence, timing, names, icons, and colors in one app.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Hey coaches, sharing is finally here =)
Create a workout, send it to your students, and let them train with your plan!
• Customize exercise colors in Quick Timer and Workouts.
• Make the app yours with improved Settings and timer background patterns.
• All features remain free.
Thanks for your support and feedback. You help me make the app better =)
The developer, Svyatoslav Boiko, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Svyatoslav Boiko
- Size
- 41.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © hassle
