# Tone Chroma — Microtonal Matrix

> Microtonal Matrix (iPhone/iPad app by William Franke.)

- Source: https://appshunter.io/ios/app/tone-chroma/id6760430549 (this page in markdown: same URL + `.md`)
- Developer: [William Franke](https://appshunter.io/developer/1884427860)
- Category: Music
- Price: $14.99
- Age rating: 4+
- Requires: iOS 14.0 · 4 MB
- Languages: American English
- Released: 2026-07-15
- Data updated: 2026-08-07
- User reviews in markdown: https://appshunter.io/ios/app/tone-chroma/id6760430549/reviews.md

## What is Tone Chroma?

Tone Chroma is an interactive microtonal matrix for iOS, crafted for 21st century musicians. 

Both musical instrument and visualizer, Tone Chroma's interface breaks through the black-and-white mould of equal temperament and expands harmonic potential into a new universe of color. 

Features:
- Play in real time on the color-coded microtonal tuning matrix with pure harmonic ratios
- Seven visualizers — Lissajous curves, concurrent and countercurrent harmonograph, harmonic series, chromatic ring, tonal lattice, cymatics — each rendering sound as living color and form
- Explore microtonal scales, ragas, and modal systems beyond 12-tone equal temperament with presets
- MIDI input/output for use with external controllers and DAWs
- Real-time microtonal note, frequency and interval information
- Customizable tuning and chord banks 

Enter new harmonic horizons with Tone Chroma by exploring pure frequency relationships and synesthetic displays which allow you to hear and see universal vibrational patterns.


## Version history (last 1 release)

### 1.0 — 2026-07-15

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-07.*