The app contains the major mandolin chords.
You can:

• see the mandolin 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 your documents,
• transpose the chords to level which is optimal for you.

And more:

• support for left-handed users,
• volume control.