HarmoniKeys: Piano Chords
HarmoniKeys: Piano Chords is made and published by Yoann SACHOT. AppBrain is an independent app data site and isn't affiliated with Yoann SACHOT. The app name, icon, screenshots and description belong to Yoann SACHOT and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- October 23, 2026
Rankings
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Also available on Google Play
Releases
Updates seen on the App Store- Version
- 1.0.49
- Launched
- April 2026
No changelog data
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Technology
Found in the app by AppBrain- Price
- $3.99
- App size
- 26.8 MB
- Content rating
- Everyone
Technologies used by HarmoniKeys: Piano Chords
About the app and developer
About HarmoniKeys: Piano Chords
HarmoniKeys: Piano Chords is a music app developed by Yoann SACHOT.
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The app has no ratings yet.
App Information
HarmoniKeys: Piano Chords costs $3.99. The app size is 26.80 MB. The latest version available is 1.0.49. The last update was on October 23, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since April 2026.
Developer information for Yoann SACHOT
Address:
Frequently asked questions about HarmoniKeys: Piano Chords
Is HarmoniKeys: Piano Chords free?
No. HarmoniKeys: Piano Chords costs $3.99 on the App Store.
Is HarmoniKeys: Piano Chords still available?
Yes. HarmoniKeys: Piano Chords is on the App Store, and the last update we saw was on October 23, 2026.
How large is HarmoniKeys: Piano Chords?
HarmoniKeys: Piano Chords is 26.80 MB.
Is HarmoniKeys: Piano Chords suitable for children?
App Store rates the content of HarmoniKeys: Piano Chords as suitable for everyone.
Who made HarmoniKeys: Piano Chords?
HarmoniKeys: Piano Chords was developed by Yoann SACHOT. It is listed in the music category on the App Store.
Store listing
By Yoann SACHOT, from the App Store
Description by Yoann SACHOT Written by the developer, not by AppBrain. Click to read.
HOW IT WORKS
Select your chords and HarmoniKeys automatically calculates the positions that minimize finger movement between each chord. No more unnecessary jumps on the keyboard!
FEATURES
- 34 chord types: major, minor, diminished, augmented, sus2, sus4, sevenths (7, Maj7, m7, mMaj7, dim7, m7b5, aug7, 7sus4), sixths (6, m6, 6/9, m6/9), ninths (9, Maj9, m9), elevenths (11, m11, Maj7#11), thirteenths (13, Maj13, m13), altered (7b9, 7#9, 7#11), add9, madd9, add11, madd11
- Extended chords as four-note voicings, playable with one hand
- Smart voice leading algorithm: common tones kept on the same finger, minimum movement
- 2 interactive keyboards: left hand and right hand with displayed fingerings
- Real-time MIDI audio with General MIDI piano
- Built-in metronome with live adjustable tempo
- Preset progressions: Canon, Blues, Jazz, Pop and many more
- Unlimited chord grid saving
- Share grids via QR code
- Drag and drop to reorder chords
- Configurable notation: Anglo-Saxon or solfège
- 4 languages: English, French, Spanish, Chinese
WHO IS IT FOR
- Beginner pianists learning proper chord transitions
- Advanced pianists seeking optimal positions
- Composers experimenting with chord progressions
- Music teachers teaching harmony
100% OFFLINE
No internet connection required. No data collection. Your music stays private.