Holon is an auditive mixed reality app that generates functional music from your body movements and the world around you - your behaviour. Use it for active commuting - or almost any sport you can think of - Holon adapts seamlessly to your activity and context.

Holon couples movement with sound in an immersive, physical experience that supports and encourages movement in different ways.

Functional feedback can improve concentration, endurance and performance, for example when walking or running. It can also be used for relaxation, meditation, yoga, dance or anything involving motion.

Your fluctuating heart rate and step rate changes the tempo of the music, while other musical content is generated in real time from your activity, course, weather, time of day, health data, and many other signals.

For complete functional biofeedback, we currently support Apple Watch and Suunto Movesense (available as In-App Purchases).

Bonus pro feature: Sync your heart rate with professional music apps using Ableton Link!

Holon is based on principles of affective design and biomusicology and puts the user in the centre of an open world of synthesised sound. Holon is a passive, zero-UI app, where your biomechanical movement and biosignals form the musical circuitry. Become part of the circuit, become sound!

P.S. Our professional editor for motion, location, and biosignal-based music, launches soon. Try it now with VCV Rack - it connects automatically! Get our free plugin pack from:

*** Known Issues ***
- Holon sometimes crashes when paused, and in background mode.
- Using Holon in a moving vehicle sometimes causes audio feedback. Deleting and reinstalling Holon should resolve this.
- Apple Watch reconnection problems may occur, either showing an “X” icon on a red circle, or is in a paused state (square icon). Closing and reopening the app on the iPhone - sometimes repeatedly - should improve the connection.

What’s New

Version 0.7

- IAP bug fixed
- Bug fixes for iPad

Ratings and Reviews

4.0 out of 5
7 Ratings

7 Ratings

xJohnnyHx ,


Very, very cool concept and execution. Would love Audiobus support.

Developer Response ,

Thank you very much! It’s possible that we could include Audiobus and AUv.3 support, but it’s more likely to be available sooner for our editor,, which already has MIDI out. You’re welcome to try the beta:

bigboom13 ,

Wow!!! Great app!

This app is so unique! I couldn’t find any app quite like this! It’s so cool how you can just move the phone in different ways and make music! I do have a few suggestions though. You should include a manual explaining which way you have to move your arm to make a certain song. That is pretty much the only thing this app needs to become the best Ar music app!

Developer Response ,

Thank you for your review and kind words. We’d like to help but the complexity of our music engine is such that we ourselves cannot completely fathom it’s workings. Holon is very much about exploring the features first hand and some results are not always replicable, as the factors behind them involve the weather, time of day, distance traveled and so on. Our editor,, on the other hand, is a fully configurable meta-instrument. We wish you many happy moments with Holon.

michdavidadams ,

Very neat

I enjoy using this when I don’t feel like listening to my music library but also don’t feel like listening to podcasts or audiobooks. It’s neat noticing how the music changes slightly when my car goes faster or slower.
I do wish the music was slightly more pleasant. Many times it sounds unpleasant.

Developer Response ,

Hello and many thanks for your review. We need to address this and would like to invite you to participate in the process. It would really help us a lot if you’d write us to - we can then find out exactly how to improve the experience.


Holonic Systems Oy
83.9 MB

Requires iOS 10.3 and watchOS 4.2 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
This app may use your location even when it isn't open, which can decrease battery life.
In-App Purchases
  1. Apple Watch support $1.99
  2. Movesense Support $3.99


  • Family Sharing

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

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