Simple Interval Timer 4+


Designed for iPhone

    • 4.8 • 828 Ratings
    • Free
    • Offers In-App Purchases


Simple Interval Timer (SIT) can be used for any kind of interval training, such as running, cycling, HIIT sessions (including Tabata method), stretching, etc.

SIT is exactly what you would expect. An interval timer, which is easy to set up and use. It features a nice plain design, with no unnecessary controls.

Adjust Number of Sets, Action and Break duration to your needs and you are ready to go!

On the iOS an extra switch control allows you to prevent the screen from dimming.

SIT remembers the last 5 configurations you have used. Swipe left across the Settings screen to switch to another configuration.

SIT can run in the background, while you are playing music, watching videos or doing anything else on your iOS device.

SIT Watch features the same simplicity as the iOS app while offering the same functionality, plus it will measure your heartbeat during the workout sessions. The recordings will be available in the Apple's Health app.

SIT Watch runs independently of the phone, so no need to have your phone around during your workouts (although you will need your phone during the very first time you launch SIT watch).

SIT lets you avoid any tedious set up and focus on your training!

What’s New

Version 5.1.2

Minor improvements

Ratings and Reviews

4.8 out of 5
828 Ratings

828 Ratings

moorefamily5 ,

Gets the job done!

Simple and easy to use

eleve055 ,

Stops working in the middle of an interval

This app was great for a few weeks but then suddenly started stopping right in the middle of an interval. I’d look down at my watch during a run and find the home/setup screen and would have to redo my settings completely. SUPER frustrating during a workout!

Under30charsandnottaken7548 ,

Phone app works; watch app issues

Watch app does not allow use of strava (or other workout apps?) at the same time. Otherwise would be 5 star.

App Privacy

The developer, 0FF, 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 Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Usage Data

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

More By This Developer

Spell Russian
Simple Moto Logbook
Simple Self Love
Health & Fitness

You Might Also Like

Boxing iTimer Lite
Rock 'n' Roll Running Series
CVG Nation
Pig Works Events
Boxing Round Timer