SongBook - SongBook is a music app that helps you to manage your song collections complete with lyrics and chords.

ChordIQ - Learn notes, chords, sight reading, perfect pitch and more.

Chordbase Lite - Chordbase Lite is a paperless solution for the gigging musicians to display lyrics and chords on mobile devices.

soundrop - Soundrop is an app that allows you to create your own personalized sound track to keep you focused or relax.

Guitartapp Chord Pro - Guitartapp Chord Pro is the world’s largest and popular music and audio app that allows you to throw away your songbooks and start jamming with this app.

muted.io - A magical collection of interactive music theory tools & visual reference pages for musicians and music producers