HIIT (Watch) Timer 4+

Simple interval timer for HIIT


Designed for iPad

    • 4.2 • 11 Ratings
    • $3.99


A simple HIIT app specifically engineered for Apple Watch. It also provides a simple HIIT timer for iPhone/iPad.

With easy setup, clean display, live heart rate, haptic feedback, workout summary and completely independent Apple Watch app experience, your interval workouts will undoubtedly be fun.

The workout also adds up to the move and exercise rings on Apple Watch.


• Super easy setup
Digital crown makes setting intervals a breeze. The app remembers your previous settings.

• Clean display
Large fonts, vivid colors, live heart rate

• Workout summary
Calories burned, average and max heart rate, total time

• Health app integration
Workouts are saved to the Health app

• Audio alerts and haptic feedback
Subtle haptic feedback guiding you through the intervals. You can also set audio beep alerts if you want.

• Runs in background
A completely independent Apple Watch app experience

• Complications
They show the time left for the workout. Also, they are a quick way to launch the app.

• More settings
+ Warm up interval
+ Cooldown interval
+ Last rest interval
+ Halfway alert
+ 8 sec warning during rest
+ Interval change warning (when 5 seconds are remaining)

• Extra
A simple HIIT timer for iPhone/iPad

* Note: Though this app is primarily designed for Apple Watch, it also provides a simple iPhone/iPad HIIT timer.

What’s New

Version 2.5

• Enhancements and bug fixes

Ratings and Reviews

4.2 out of 5
11 Ratings

11 Ratings

Ggirton ,

I use this watch HIIT app several times a week

I got this some months ago when I was about halfway through a 10 week program in the book “you are your own gym“. Now I’m in week 10 of a second 10 week program, and this little watch app has been so useful! The only downside: you can have only 20 reps, and the book, on the Tabatas days, calls for three groups of eight: oops, that’s 24! Hey, that’s OK, Tabatas are hard anyway :-) 20 is fine.

I really like how the results of the workout feed into the activities app. In order for this to happen, you have to agree for access to Apple health. Make sure you decide to do this the first time, otherwise you will have to delete the app and reinstall it again to activate this.

There are several different configurations of HIIT that I do, and it is very easy to adjust those using the watch interface. It comes with a Phone app as part of it, but I have never used it. I always use the watch.

I would definitely recommend this app if you are doing high intensity interval training.

AliveByChiro ,

Haptic Feedback Too Weak

Love the app, but had to take a point for the haptic feedback, it’s just too light. When doing Tabata I miss the cue frequently.

Please make it stronger.

Brian T. Edmondson ,

Awesome and Easy

Really like this app. Really easy to use and setup. The fact that it's native for the Apple Watch really makes the display and prompts easy and visually appealing.

Integrates with Apple Health perfectly.

Love it!

App Privacy

The developer, RhythmicWorks, 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 Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

Sun Salutos - Surya Namaskar
Health & Fitness
Health & Fitness
EatHealthy Tracker
Health & Fitness
Meditate - Mindfulness app
Health & Fitness
iCountTimer Pro
Health & Fitness
WorkBreak Timer (Watch)

You Might Also Like

BJJ Training Notes
Health & Fitness
Restrr - Gym Rest Timer
Health & Fitness
PacePlay: Run, Walk, Bike
Health & Fitness
BP Log
Health & Fitness
Simetim Meditation Timer
Health & Fitness
Kapp - Kegels for Everyone
Health & Fitness