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Accelerun is a music player that helps you keep in rhythm while exercising by changing the speed of your music to sync up with your steps.

Music can make running easier. However, at the wrong tempo, it can have the opposite effect. With Accelerun, you can simply set a tempo and run. Step with the beat, and the music will push you. Most tracks with a constant tempo and a strong beat should work well. Accelerun uses a high-quality time-stretching algorithm with minimal distortion.

You can also create running playlists ahead of time in Accelerun, helping reduce the mid-run interruption of changing music. Music can be selected from your device's Music Library, and now YouTube videos can be added to your list! (Note: YouTube requires an active data connection during the run.)

What’s New

Version 1.1

- Now you can add YouTube videos to your run playlist!
- iOS 13 support
- Haptic footsteps
- Other bugfixes

App Privacy

The developer, Bradley Klemick, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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