
$5.99
About
Hexatone turns your iPhone or iPad into a microtonal instrument you can actually play. The keys form a honeycomb where every interval has the same shape wherever your hand sits, so a chord you learn once works in every key, and in every tuning.
It makes its own sound, in tune, with two built-in voices and a sampler, so you need no other app to start. It also plays MPE synths in tune and runs as a plugin inside your music apps.
NEW IN 2.0
- Hexatone on iPhone, in portrait and landscape. One purchase covers iPhone and iPad.
- Note colours: each key is coloured by how its note is spelled. Naturals are warm white, flats run warm and sharps cool, deeper with every accidental, in any EDO.
- Scale highlight: dim every key outside a pentatonic, diatonic or 12-note scale on any root. Dimmed keys still play.
- Flat keys that light up and glow as you play, with note names on every key.
- Octave buttons right on the keyboard.
PLAY ANY TUNING
- Any equal temperament from 2 to 96 notes per octave, with quick picks for 12, 19, 22, 24, 31 and 53
- Import your own Scala (.scl) scales: just intonation, historical temperaments, world tunings. Keys show their ratios.
- Set the octave and concert pitch (A4 from 400 to 480 Hz)
A SOUND OF ITS OWN
- Two built-in voices: Hexatone Bell, struck and ringing, and Hexatone Glass, which sustains for as long as you play
- Load a single audio file and play it across the whole keyboard, in tune
- Build an instrument from a folder of samples: Hexatone detects each pitch and maps the keys for you
- Or import multisample instruments (SFZ), as a folder or a .zip
- Rename and delete instruments to keep your library tidy
- Up to 16 voices at once
PLAY HANDS-FREE
- Hold sustains a chord after you lift your fingers. Tap a held key to drop it.
- Arpeggiator: five patterns, rates from 1/4 to 1/32 with triplets, gate, tempo and up to 4 octaves. Add or remove notes while it runs.
- In a host, the arpeggiator locks to the host tempo and its bars
- A panic button silences everything at once, without changing a setting
ISOMORPHIC LAYOUTS
- Bosanquet, Wicki-Hayden, Harmonic Table, Fourths, Accordion (B and C-system), Park and Gerhard, plus a Custom layout
- Every layout follows whatever tuning you pick
KEYS YOU CAN READ
- Note colours, or one of five pitch palettes: Hexatone Pastel, Inferno, Turquoise, Campfire and Signal
- Labels show note names (with ^ and v for the steps in between), steps, ratios, or nothing
- Key size from 26 to 64 points
WORKS WITH YOUR SETUP
- Standalone, or as an AUv3 plugin in AUM, Logic Pro, GarageBand, Cubasis, Loopy Pro and Drambo
- Two plugins in one: Hexatone, an instrument with its own sound, and Hexatone MIDI, a pure MIDI source for hosts that record MIDI from their MIDI slots
- MPE pitch: each note plays on its own channel with its own pitch bend, so MPE synths sound every microtonal interval in tune
- The plugin plays incoming MIDI and reads per-note pitch bend, so a recorded performance plays back in tune
- Pitch-bend range of 48, 24, 12 or 2 semitones
- Fixed velocity, or (in the app) an experimental accelerometer mode with its own curve
Two honest limits. Hexatone sends per-note pitch and velocity, not the continuous timbre (CC74) or pressure of touch controllers like the Seaboard: a flat glass screen cannot sense those well. And a phone tracks fewer fingers at once than an iPad, so build big chords there with Hold.
One price. No subscription, no in-app purchases, no accounts, no ads, no data collection.
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What's New in Hexatone
2.0
November 10, 2026
New in 2.0: Hexatone runs on iPhone too, and one purchase covers both. Keys are now coloured by how each note is spelled, in every tuning.






