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Reduce your risk of injury when running. Run faster! AudioStep helps you to run consistently by running to the beat of all your music.

AudioStep analyzes your music and adjusts the tempo on the fly. The pitch does not change. No Chipmunks were harmed building this app!

You select your BPM (beats per minute) and all your music plays at that tempo.

Initially AudioStep was designed to consistently run at 180 steps per minute by matching each step to the beat of the music playing at 180 beats per minute.
Eventually, testers found different use for listening to music at different BPM and so we added a slider where you can set your target BPM going from 120 up to 200 BPM.

Studies have found that running at 180 BPM reduces the risk of injuries.
The slower the cadence, the longer you are in the air and the harder you land. Slow turn over means more impact, which causes more injury.

Most non-elite runners maintain a cadence of around 160 steps per minute.
Increasing the step count to 180 per minute will reduce your risk of injury.

As a side effect it also makes you run faster. While there have been no studies identified to prove this, there is a lot of anecdotal evidence available online.

- Normalized volume (all songs use the same perceived volume, no more Taylor Swift being louder than Metallica, they both are now normalized to the same perceived volume)
- Runkeeper support
- Bluetooth heart rate monitor support with warnings for high and low heart rates
- Voice over status updates (distance, time, split pace, average pace, step count). You can set your own update interval as text entry in miles or meters
- 5 eq presets (import for Equalizer presets is in the works) to make it sound the way you want (bassbooster, treble booster, u-shape, extrabass and flat)
- Sophisticated Beat Detection library by SampleSumo

Read more about a personal account on how AudioStep was developed on our blog at blog.audioforge.org

Also please note that continued use of GPS running in the background can dramatically decrease battery life.

What’s New

Version 2.07

Fixed iOS9 crash

Ratings and Reviews

2.0 out of 5
16 Ratings

16 Ratings

sina_d ,

Audio Crash Step

Started out fairly stable, but this $4.99 app hasn't weathered recent iOS/iTunes updates well. It cuts out during workouts now, plays one song, or can't locate playlists, really unstable. When it was working the UI wasn't sophisticated but it did the trick. adjustable bpm sliding scale. The songs on my playlist are slowed down or speed up to 180bpm for cadence training and the vocals dont sound distorted which is great! I am going to look for other options.

Klahsen1111 ,

Gave up

Wouldn’t analyze my running play list. Crashed at least 5 times while trying to analyze. Then i let I play music while it analyzed. Crashed again. I would like my $.99 back.

Trex77🐙 ,

Informative and made an impact

I'm working on my 1min mile time(beginner level) w/o this app my last mile time was 11:30. This time, it was 10:13!! This app made it easier to stay on track oh and I realized how slow (Bpm) my "workout" song list is.

App Privacy

The developer, Audioforge Labs Inc., 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.


Audioforge Labs Inc.
5 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

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

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