Fartlek, which is Swedish for Speed Play, is an effective and fun way to incorporate some speed work into your training. A Fartlek workout consists of a series speed-recovery intervals of various lengths, but what makes it unique is the runner will not know the length of the interval. Runners will need to pace themselves in order to make it through the entire workout.

After a warm-up the runner will run a speed interval followed by a recovery of equal length. The length of an interval will vary in length 30 second to 3:30 minutes.

Fartlek Yourself
• generates a workout based on the length you select.
• randomizes intervals making each workout unique
• provides audio instructions that walk you through the workout
• has adjustable levels of hints and motivation.
• includes a warm-up and cool-down
• can be controlled from Apple Watch (not required)

What’s New

Version 1.2

This app has been updated by Apple to use the latest Apple signing certificate.

Updated for compatibility with IOS 10.
Added an option to toggle audio coaching during workout.
Optimizing code for performance.
Compatibility with Watch OS3.
Improved control with Apple Watch.
Share workout on social media,

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

App Privacy

The developer, Oxygen Box, 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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