# KeyChord - Piano Chords/Scales

> The dynamic dictionary/reference app for piano chords and scales!

Canonical page: [https://chrome-stats.com/d/umito.android.keychord](https://chrome-stats.com/d/umito.android.keychord)

## Overview

- **ID:** `umito.android.keychord`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Umito
- **Category:** BOOKS\_AND\_REFERENCE
- **Downloads:** 22,249
- **Rating:** 4.79 / 5 (373 ratings)
- **Version:** 2.170
- **Last updated:** 2026-08-04
- **First published:** 2010-06-26
- **Publisher country:** NL
- **Size:** 27 MB
- **Data as of:** 2026-09-30
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=umito.android.keychord)
- **Website:** [http://www.umito.nl](http://www.umito.nl/)
- **Privacy policy:** [https://www.umito.nl/privacy/keychord-android-privacy-policy.html](https://www.umito.nl/privacy/keychord-android-privacy-policy.html)

## Description

**KeyChord - Piano Chords/Scales** is a powerful and dynamic reference app designed for piano players and music enthusiasts. It provides an extensive dictionary of over 50 chord types and 100 scale types, along with a versatile 88-key multitouch virtual piano featuring 128 different sounds. Users can explore chords and scales interactively—tap to select root notes, invert chords by long pressing, and enjoy real-time audio playback for each chord and scale.

The app includes unique reverse lookup capabilities that identify chords or scales based on selected notes, even accommodating partial chords. Additional features include staff view, note names, component intervals, dark mode support, and the ability to record songs as MIDI files for use as ringtones. KeyChord combines educational and practical tools in an intuitive interface, making it an essential app for musicians seeking comprehensive chord and scale references on the go.

## Rankings

- #419,566 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.DETECT_SCREEN_RECORDING`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `umito.android.keychord.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users appreciate the app's extensive chord library, one-time purchase model, and high-quality musical features. It's noted as user-friendly and fun, suitable for both learning and reference. However, some users face issues opening the app after purchase and struggle with unclear features like saving favorites and changing notation. A notable sound lag with Bluetooth earbuds and a need for more interactive learning tools are common concerns.

### Pros

- Comprehensive chord library and scales features.
- One-time purchase without subscriptions or account registration.
- User-friendly and fun to use with a good interface.
- High musical and technical quality with a wide range of options.
- Effective as both a learning tool and reference app for chords and scales.

### Cons

- App sometimes fails to open or is disabled despite purchase.
- Lack of clear instructions for certain features like saving favorites and changing notation (sharps/flats).
- Sound lag issue when using Bluetooth earphones.
- Limited interactivity for learning chords-scales beyond definitions.

## Similar extensions and apps

- [KeyChord Lite](https://chrome-stats.com/d/umito.android.keychord_lite) — 208,978 users, 3.70 / 5
- [Piano Scales & Chords Pro](https://chrome-stats.com/d/com.veitch.themelodymaster.psajp) — 2,123 users, 4.57 / 5
- [Piano Scales & Chords](https://chrome-stats.com/d/com.veitch.themelodymaster.psajf) — 1,437,670 users, 3.88 / 5
- [All Chords - All Scales](https://chrome-stats.com/d/com.allchords) — 18,092 users, 3.41 / 5
- [Piano Chords, Scales Companion](https://chrome-stats.com/d/com.binitex.pianochords) — 2,832,839 users, 4.69 / 5
- [Chords and Scales Finder](https://chrome-stats.com/d/com.candsfinder.chord_and_scale_finder) — 41 users
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- [KeyScale](https://chrome-stats.com/d/app.keyscale.twa) — 252 users
- [Piano Chords -Chord Dictionary](https://chrome-stats.com/d/com.teamgugu.pianochords) — 2,439 users
- [My Piano Assistant](https://chrome-stats.com/d/com.alexpp.mpa) — 1,387,470 users, 4.58 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/umito.android.keychord)