Guitaa is a free online music platform for musicians, that lets them find chords of any song of their choice on Guitar, Piano and Ukulele.
App:
Perfect app for musicians
ChordU - Extracts chords from any song, integrated YouTube.
White Tiles 4 - White Tiles 4 is a music game that allows you to enjoy your leisure time by transforming your device into a floating piano.
Chordify - Chordify turns any music or song (YouTube, Deezer, SoundCloud, MP3) into chords.
Don’t Tap The White Tile - Don’t Tap The White Tile is a Free to play Arcade and Single-player video game created and published by Cheetah Games.
yalp.io - Automatic chords extraction from mp3 and YouTube
Rolling Sky - Rolling Sky is a ball game through which you can develop hand-to-eye co0rdination.