Holon is an auditive mixed reality app that generates synth music from your body movements and the world around you - your behaviour. Use functional feedback 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. Holon now supports Bose AR equipped headphones for an even more immersive experience.

Your fluctuating heart rate (using optional Apple Watch S3/4/5, IAP available) 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. Try Holon in an elevator or on a train!

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!

“This was crazy fun to play with... jog around, and music responds. It’s like having a generative composer following you around, writing music for your workout”, Peter Kirn, CDM

“It's hard not to crack a smile when Holon starts creating music to match a person's movements. There's something entertaining, almost mesmerising, when seeing how a synth interprets human movement and attempts to make music, not just sound, from it”, Rounikh Zeti, Ask Audio

“Holon is a genuinely innovative music generation app ...The app creates music that feels so much in sync to whatever activity you’re doing. Try dancing with it, and you’ll find out that you have a tune that is playing in sync with your dance moves”, Shivam,

What’s New

Version 1.0.0

Support for Bose AR Beta! Use Bose Frames or Bose AR equipped headphones to change the sound with head movements! Improved location-based Sun and Moon tracking. iOS 13 fixes. Updated onboarding.

Ratings and Reviews

4.0 out of 5
7 Ratings

7 Ratings

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.

Kurt52 ,

Fun app but useless for music creation

Love playing with the iPhone version, but for sound design it is worthless, no way to get sound out through USB-C. I’d like to route sound to Logic Pro but doesn’t seem possible.

Developer Response ,

Thanks for the review :) Holon is more intended for immediate experiences and is not really a standalone tool. You can, however, use it to control tempo of other software by activating Ableton Link in the settings. When used with our Holonic Source plugins, Holon also works as a (very) limited demo of our other app,, which offers many uses for sound design.


Holonic Systems Oy
79.1 MB

Requires iOS 11.4 and watchOS 4.0 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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