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HIIT interval training timer

HIIT interval training timer

500,000 - 1,000,000 downloads

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HIIT is an app that will help you with your High Intensity Interval Training workouts. This method is a great way to burn fat in a short & intense workout.

The app has been created to be SIMPLE : it’s simple to set up your workout, it’s simple to use so you can forget about it during your training and just follow the sounds.

High-intensity interval training (HIIT), also called high-intensity intermittent exercise (HIIE) or sprint interval training (SIT), is an enhanced form of interval training, an exercise strategy alternating periods of short intense anaerobic exercise with less-intense recovery periods. HIIT is a form of cardiovascular exercise. Usual HIIT sessions may vary from 4–30 minutes. These short, intense workouts provide improved athletic capacity and condition, improved glucose metabolism, and improved fat burning.
This definition comes from wikipedia ( where you can find a lot more informations. It explains some very popular program, like the TABATA. HIIT is also a common practice in Crossfit trainings.

You can use it while cycling, running, sprinting, weightlifting, circuits, tabata….
On the first screen you will set up your workout : preparation time, work, rest, rounds and cool down
Then hit “Go !”, work and just follow the whistle !
You can listen to your own music, just make sure you can still hear the whistle.

See, it’s very simple !

New features will be available soon, thanks for your feedback, you can vote on new features in our forum ( and join us on Facebook (

And if you love the app, you can purchase the AD FREE version, for only 1.99 $ :-)

Now automatically pause and resume if a phone call arrives.
This is why PHONE_STATE permissions are required. The app doesn't have internet access so there's no chance of sniffing numbers.

Tags: hiit, interval, interval training, hiit interval training timer, interval timer, hiit timer, hiit 100s training, interval training timer, hiit interval training, hiit training.

Recently changed in this version

Added scrolling to support small screens
Increased font size for high density screens
New Whistle sounds
Consumes less memory, this could help people reporting issues with sounds

Happy workouts!

Screenshots HIIT interval training timer
View bigger - HIIT interval training timer for Android screenshot
View bigger - HIIT interval training timer for Android screenshot
Comments and ratings for HIIT interval training timer
  • (69 stars)

    by templephysicist on 01/07/2011

    Great app. I'm using it on a Motorola Xoom, though, and it's very small. Any chance you'll update it for Pads?

  • (69 stars)

    by Joe Middleton on 23/09/2014

    Use this all the time for my workouts and with clients. One feature that would be nice would be to have varied lengths of intervals

  • (69 stars)

    by sam trujillo on 23/09/2014

    Easy to use and straight forward. The only inconvenient part about it is it doesn't have a "hold down" function for the minutes/seconds button. So if I want to do an interval for 30sec on and 30sec off, I have to tap the seconds "+" 30 times. Not a big thing and otherwise it's fine for me.

  • (69 stars)

    by Paul Clarke on 23/09/2014

    Good app but really needs a landscape view so I can see it properly. Cant find an interval trainer in the google store with screen rotation so just using in built timer for now...will keep an eye on this and re-install when or if it gets added!

  • (69 stars)

    by Victoria Hayduk on 21/09/2014

    Just what I was looking for. THANKS!!

  • (69 stars)

    by paul williams on 21/09/2014

    I think the app is great but i just did a workout and it seemed that the whistles were sometimes wrong? some intervals were longer, some shorter and some were right. This was also the case for the rest periods too. I had to start my workout over 3 times with the same issue happening each time. Is live to give this 5 stars but i can't because it doesn't work properly

  • (69 stars)

    by Michael Schienbein on 20/09/2014

    Been using it for years and have the paid version, just wish the paid version was integrated into the main app, not a separate icon that serves no purpose.