JAX - Walking On A Rainbow
The Musical Frequency Analyzer
USD 11.99 · Designed for iPad
Experience real-time frequency analysis wrapped in a beautiful musical concept. Bare-metal code, stunning Metal visualizers, unmatched efficiency. Join the frontiers.
Introduction price is available for a short time.
We have harnessed Apple’s cutting-edge hardware and native programming frameworks to create an Audio Unit that is truly unparalleled. From floating-point vector registers and Metal Performance Shaders to shared memory between the Audio DSP kernel and the GPU...
However — since all of this might sound a bit too technical — we didn't simply use these technologies as a means to an end; instead, we wrapped them in a musically meaningful and beautiful concept.
JAX 'Walking On A Rainbow' is our answer to classic frequency analysis tools — featuring a consistently musical implementation designed for real-time processing, imbued with a certain imaginative charm.
The songs we composed specifically for this purpose serve to underscore this very concept:
‘Open your mind and you'll find it's like magic.
When you take a step.
Oh
I'm walking on a rainbow.
Walking on a rainbow!’
WE ARE FRONTIERS.
You can expect more to cone and - you are welcome to join us.
Technical Note: The AudioUnit is smaller than 8 MB and consumes less than 1% of CPU power on an Apple M4 chip. No bloated third-party frameworks were used; this is a native development aligned as closely as possible with Apple's latest hardware (silicon).
The manual is available on our website at:
https://audio.digitster.com/wp-content/uploads/2026/05/JAX-Walking-On-A-Rainbow.pdf
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
The developer, Jens Guell, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Jens Guell
- Size
- 134.4 MB
- Category
- Music
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 digitster.com
