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Interval Timer:Timing for HIIT Training, Workouts

By Deltaworks

This app is only available on the App Store for iOS devices.


***Free and reliable. Perfect for use at home, at the track or in the gym.

We’re proud to introduce this handy little app that helps you keep track of your work and rest periods during workouts. Whether your into cycling, running, lifting weights, exercise, workout, stretching, boxing, MMA or HIT, this interval timer will prove to be an invaluable asset to you.

Running foreground, background or with device locked, this reliable app allows you specify an overall time as well as program High/Low intensity interval and rest time between sets.

Key Features:
- Customizable sets, high/low intensity interval and rest for your own need
- Retina display, iOS4 and multitasking
- Continue to run even when screen is locked
- Play your song or playlist during your workout
- Post your workout to Facebook or Twitter
- Save settings as templates

Customizable Features:
- Number of Sets
- Countdown Time
- Set Time
- Low Interval time
- High Interval time
- Rest Time
- First Interval (low or high)
- Sound Volume
- Timer Sounds
- Auto Lock
- Vibrate
- Pause during Rest
- Playlist
- New Each Set

What's New in Version 4.0.0

- Add start/stop button in landscape mode
- UI/UX enhancements
- Minor bug fixes


iPhone Screenshot 1
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Customer Reviews

It just works

I have downloaded so many interval apps looking for something to help me hold stretches longer. This is the best so far. Perfect. <edit> - 5 years later. Still love it. Still use it.

It would be great if the description outlined the difference between the free version and pro. I can't tell the difference.

Also the timer sounds are pretty bad. It would be awesome if there were a simple "ding". The current options are too loud, too long, jarring, aggressive. I use the tweeting one because it's more soothing but it's lime 5 seconds long! No bueno

Not happy with the update

I do like how easy this is to use and how customizable it is. I do wish, though, that there was more variety in the color options to differentiate between workouts, and I was using the feature where it saved the last workout you did and that was the first thing you saw when you opened the app. Now it starts back at the beginning, and I have to go into the calendar to see what workout I did last. Also, the color in the drop-down list does not match the main color of the workouts I do, so it's even harder to track my workouts in the calendar. The new update has decreased the simplicity and efficiency of the app. 😡

No complaints

This app works perfectly and has all the customization and features I need. There are advertisements, but they're small and don't intrude on usability. Other similar apps put all their useful features behind a paywall, but not this one! So glad I found it.
Update: the most recent update made this app even better! User interface is beautiful and modern, and navigation is easier than before. A true 5-star app

Interval Timer:Timing for HIIT Training, Workouts
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 4.0.0
  • Size: 20.4 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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