# Harmonaut — MIDI Chord Composition

> Intuitive chord instrument for creating music by feel, not theory. (iPhone/iPad app by District One Mobile, LLC.)

- Source: https://appshunter.io/ios/app/harmonaut/id6784680994 (this page in markdown: same URL + `.md`)
- Developer: [District One Mobile, LLC](https://appshunter.io/developer/812513884)
- Category: Music, Productivity
- Price: Free
- Rating: 5.00/5 from 6 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 117 MB
- Languages: American English
- Released: 2026-07-22
- Data updated: 2026-10-08
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/harmonaut/id6784680994/reviews.md

## What is Harmonaut?

Harmonaut™ is a chord instrument you play by feel. Press a key and hear a rich chord, voice-led smoothly from the last one, no theory needed. Build a progression, shape its mood, and export it as MIDI for your track.

Two faders let you shape the mood as you play: more tension or less, brighter or darker, even major to minor. Chase a moody electronic progression, a warm lo-fi loop, a jazzy turn, a cinematic swell, or a simple pop hook. It all comes from your intent, not from naming chords.

HOW IT PLAYS
• Tension that actually resolves: chords that lean, pull home, and land, so your progression goes somewhere instead of just floating
• Every one of the twelve keys is in play: reach past the obvious chords for richer, more surprising color, and it still sounds right
• Build a whole progression, not just four chords: every chord you play lands in your trail, ready to reorder or duplicate to try new versions in seconds
• Pick up right where you left off: your ideas are saved for you

TAKE IT TO YOUR TRACK
• Export any progression as a MIDI file and drop it into BandLab, GarageBand, or any DAW that opens MIDI, then play it through any instrument you like
• Export to iReal Pro format to keep a chord chart or practice over the changes
• Harmonaut Pro unlocks MIDI export, iReal Pro export, and unlimited saved progressions

IT SOUNDS GOOD FOR A REASON
Every chord is voice-led from the one before it, live, as you play: the notes move the shortest way, so a progression flows instead of jumping around. That's the finished feeling you hear in the songs you love.
Push Intensity and the voicings open up: lush 9ths, bright 13ths, and altered dominants like G7#9b13, the colors session keyboard players reach for.
And Harmonaut names every chord the way musicians actually write it, like Ebmaj7, so you can hand your progression to a session player, a bandmate, or a producer and they'll play it back exactly, first time.

No box to buy, nothing to charge, no menus to dig through. It's already in your pocket.

Whether it's your first progression or a sound you can hear but can't name, Harmonaut meets you where you are.

See the end user license agreement at the following link:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Play by feel, no theory required
- Shape mood with tension and brightness faders
- Smooth voice leading for flowing progressions
- Chords named for musicians
- Save and reorder progressions
- Works on iPhone and iPad

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/harmonaut/id6784680994/reviews.md

### 5/5 — Awesome!

*2026-10-01*

Really fun and easy way to explore harmony.

### 5/5 — Love💕

*2026-10-01*

This is a fantastic app …so easy to use.  I plan to use this is my go to learning tool! Thanks 😊

### 5/5 — Fun app!!!

*2026-07-23*

This app is fun to play with! I don’t know all of the chord symbols but the sound is good, and it does it automatically. Maybe this will help me learn more about chords!!!

## Frequently asked questions about Harmonaut

### Does Harmonaut have ads?

No, Harmonaut does not contain advertisements. It offers a free experience with optional in-app purchases.

### What devices does Harmonaut support?

Harmonaut is available on iPhone and iPad, allowing users to create music on their preferred Apple devices.

### How often is Harmonaut updated?

The latest version of Harmonaut was released on August 4, 2026, indicating regular updates to enhance the user experience and add features.

### What is the age rating for Harmonaut?

Harmonaut has an age rating of 4+, making it suitable for a wide range of users, including younger aspiring musicians.

### Can I use Harmonaut offline?

The description does not specify offline functionality, but its focus on intuitive creation suggests it may be usable without a constant internet connection.

### How does Harmonaut help with music theory?

Harmonaut bypasses the need for music theory by generating rich, harmonically correct chords and progressions based on user intent and mood controls.

### What makes Harmonaut's sound quality good?

Harmonaut connects chords with smooth voice leading for a flowing sound and names chords accurately, like musicians write them (e.g., Ebmaj7), ensuring a professional feel.

### Is Harmonaut free to download and use?

Yes, Harmonaut is free to download and use, with the option for in-app purchases to enhance the experience further.

## Version history (last 5 releases)

### 2026.2.7 — 2026-10-05

Internal improvements

### 2026.2.6 — 2026-09-22

Internal improvements

### 2026.2.5 — 2026-09-11

Internal improvements

### 2026.2.4 — 2026-09-01

Small UI tweaks and internal improvements

### 2026.2.3 — 2026-08-24

Internal improvements

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## More apps by District One Mobile, LLC

- [Salsa Rhythm](https://appshunter.io/ios/app/salsa-rhythm/id379868541)
- [Clave Master](https://appshunter.io/ios/app/clave-master/id930135396)
- [Jazz Piano Voicings: Chords](https://appshunter.io/ios/app/jazz-piano-voicings-chords/id6755896700)
- [Latin Rhythm](https://appshunter.io/ios/app/latin-rhythm/id6757296278)

All apps by District One Mobile, LLC: https://appshunter.io/developer/812513884

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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 2026-10-08.*