Most iPhone instrument apps are tough to make real music on. With AppliChord mini, anyone with two thumbs can play music!
Inspired by a music teachers autoharp, if you know the chords to a song, you can accompany anyone easily.
If you want to play a D major chord, you play the "D" key with one thumb and hit the "maj" button with the other. The chords for most popular songs can be found with a simple online search.
Also great for song writers who want to experiment with new progressions but might not have the knowledge or theory background for playing more complex chords like a Bmin13 or an F#min7b5.
Have an iPad? Try AppliChord HD, also available on the iTunes store.