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Interval Clock app for iPhone and iPad


4.2 ( 7152 ratings )
Utilities Health & Fitness
Developer: Adam Dachis
Free
Current version: 1.2, last update: 7 years ago
First release : 04 Feb 2015
App size: 16.65 Mb

Interval Clock guides you through interval training with a countdown timer that alerts you when you have to go faster or slower. This is ideal for use on a stationary bike, treadmill, or other piece of exercise equipment that allows you to look at your phone (although you can use the app for just its audio alerts without machinery if you prefer).

The app was originally designed for a 20 minute workout with short intervals, as this was found to be an ideal way to train (see this Lifehacker post for details: http://lifehacker.com/5989669). Now the app supports interval lengths and timers of your choosing. It will also remember the last interval you chose so you dont have to change it.

If you have any issues or want to report bugs, please let me know and Ill do my best to fix them.