Intervals Pro: Tabata & HIIT 4+

Tabata & HIIT Interval Timer

Buster Labs LLC

    • 4.7 • 111 Ratings
    • Free
    • Offers In-App Purchases


HIIT IT is a simple, powerful, and customizable interval timer for all your needs: HIIT (high intensity interval training), tabata, running, stretching, boxing, or any type of interval workout.

Use HIIT IT as your interval timer from home, the gym, or anywhere outdoors. It is customizable to fit your workout needs with features:

- A simple design to easily adjust your exercise and rest intervals or the number of sets in your workout.
- Audio cues and Background Mode so you don't need to keep your eyes on the timer
- History and stats to measure your progress
- Integration with Apple Health (on available devices) so you can close your rings
- Fun themes (help suggest more!)

We set out to make the best interval timer for everyone to use. We hope you enjoy it!

What’s New

Version 3.3.10

Bug fixes

Ratings and Reviews

4.7 out of 5
111 Ratings

111 Ratings

SimonLMiller ,

Clean, Simple, The Best Workout Timer and FREE

I love this... I have gone thru SO many workout timers... This one is by far the quickest to program, it retains your last program when you start a new session, and most importantly, it has a human voice option for countdowns! My only wish is that the designers could give us some options as to the look, color pallette, and font... I could see this app having a few really awesome skins: like "vaporwave" or "midnight" or maybe "Roller Disco" -that would be the icing on an already lovely cake!

LowKeyShop-aholic ,

I love this timer

This is just what I have been looking for. I started the new year like everyone else trying to get back into shape. I love my apple watch but constantly checking my watch to see when 45 seconds has passed was distracting from my workout. With this app you simply set the timer for the intervals to move, rest, and program how many sets you want to do and BAM... not worried about time, just free to perform.

bchin.herein ,

Simple automatic HIIT timer

Great timer to do HIIT, whether your workout is short or long. I mainly use it for short exercises throughout the day. I work from home and to keep myself alert throughout the day, I use this HIIT timer to move for 2-5 minutes multiple times a day to keep myself alert and focused.

App Privacy

The developer, Buster Labs LLC, 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

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


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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