Accelerun
Beats at your speed
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Archived App (Last seen on 12 May 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
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.)
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What's New in Accelerun
1.1
September 25, 2019
- Now you can add YouTube videos to your run playlist! - iOS 13 support - Haptic footsteps - Other bugfixes
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