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App Store Apps > Music > Harmonaut: Chord Player
Harmonaut: Chord Player icon

Harmonaut: Chord Player

by District One Mobile, LLC · Music · Free
On the App Store since July 2026 · Data updated 2026-11-06

Harmonaut: Chord Player is made and published by District One Mobile, LLC. AppBrain is an independent app data site and isn't affiliated with District One Mobile, LLC. The app name, icon, screenshots and description belong to District One Mobile, LLC and are shown as published on the App Store.

AppBrain's verdict

Rating on App Store
5.00
7 ratings
Last updated
November 4, 2026
Size
117.4 MB

It doesn't have enough ratings yet to judge what users think.

Official page on the App Store

User feedback

Ratings and reviews on the App Store

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Store listing

By District One Mobile, LLC, from the App Store
Harmonaut: Chord Player Screenshot 1 of 6
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Screenshots by District One Mobile, LLC, from the the App Store listing
Description by District One Mobile, LLC Written by the developer, not by AppBrain. Click to read.
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/
Official page on the App Store

Safety and technology

Found in the app by AppBrain
Price
Free
App size
117.4 MB
Content rating
Everyone

Technologies used by Harmonaut: Chord Player

Releases

Updates seen on the App Store
Version
2026.2.11
Launched
July 2026

No changelog data

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Rankings

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About the app and developer

About Harmonaut: Chord Player

Harmonaut: Chord Player is a music app developed by District One Mobile, LLC.

What is the rating of Harmonaut: Chord Player?

Harmonaut: Chord Player is rated 5.00 out of 5 stars, based on 7 ratings.

Is Harmonaut: Chord Player free?

Harmonaut: Chord Player is free. The app size is 117.39 MB. The latest version available is 2026.2.11. The last update was on November 4, 2026.

What are the requirements for Harmonaut: Chord Player?

The app has a content rating of Everyone. The app has been available on the App Store since July 2026.

Developer information for District One Mobile, LLC

District One Mobile, LLC

Address:

Share Harmonaut: Chord Player

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