KeyChord Lite is an Android application developed by Umito, designed to be a dynamic dictionary and reference app for piano chords and scales. It is an easy-to-use keyboard that allows users to lookup and play around with all chords and scales. The Lite version has access to basic chords, all scales and reverse scale lookup.

The app is built around a visual keyboard that users can use to interact with the selected chord or scale type. It supports over 50 chord types and 100 scale types, and everything is dynamic. The app does not use a database to give you a few predefined chord locations, but it knows how a chord works and lets users select a chord everywhere they want.

In addition to the dynamic nature of the app, KeyChord Lite also includes a reverse lookup for both chords and scales. Users can easily select the notes of the chord they have in mind or have discovered on their piano and let KeyChord Lite tell them how it's called. It even supports missing notes like CMaj7 (no 5th). Audio playback is also enabled in all modes, and the app includes a playable piano from Mini Piano Lite (128 sounds and 3 octaves). Overall, KeyChord Lite is an ideal companion for learning fakebook or realbook jazz piano.