The app contains major ukulele chords.
You can: 
- see the chords in standard string representation, in TAB-representation, as colored photos in one position, 
- save and load the chords sequences, 
- listen to the chords you picked with original instrument sound, 
- drag and drop the chords into the GarageBand, 
- drag and drop the chords into your documents,
- transpose the chords to level which is optimal for you.
And more:
- support for left-handed users,
- volume control.