The Gymboss Interval Timer app is a programmable interval timer perfect for any workout where timing is needed to time work and/or rest periods. You can time a single time interval, or multiple time intervals, and repeat them as many times as you wish. Perfect for running, HIIT, tabata, crossfit, home workouts, mma, boxing, weight lifting, stretching, or any other workout that requires timing.

This app incorporates all of the recommendations we have received over the years from our users to bring you the best app possible. Thank you for your input!!!

Customizable Features:
- save programs to your iCloud Drive account
- unlimited intervals
- up to 99 rounds/repeats
- unlimited saved programs
- music access directly from the app
- music dims for alarm
- multiple alarm sounds
- visual, audible, and vibrate alarm options
- social sharing options
- prevent sleep feature
- screen lock
- customizable, moving background colors
- large, easy to read display
- landscape mode option
- set different alarms for each interval
- change the end of program alarm
- label activity names for each interval to be displayed
- built in stopwatch
- ability to make rounds box bigger or smaller
- copy an entire program option

What’s New

Version 3.0.1

Bug Fixes

Ratings and Reviews

3.5 out of 5
27 Ratings

27 Ratings

Selu42 ,

Easy to configure

This has worked well for me as a Masters Swim coach. My swimmers really liked it. I spent some time looking for a simple to set up and flexible interval timer with a strong visual element that made it easy to see how much time is left in the set. This fits the bill.

I strongly agree adding an Apple Watch companion app would be super helpful.

jraper ,

Deleting unneeded timers is not obvious

I’ve created a number of timers that I no longer need, but it is difficult to delete them. The control is very picky when you swipe left. Many times it isn’t recognized. Improve this and I’ll give you a 5.

ef0963 ,

Great App

I love this app and have been using in my classes for years. The one thing that would make it better is to have an Apple Watch app. I would love to be able to control it through my watch.


Gymboss LLC
33.2 MB
Health & Fitness

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2014 Gymboss, LLC
In-App Purchases
  1. Remove Ads $0.99
  2. Sound and Color Bundle $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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