The app has a novel chording interface, making it possible to switch chords quickly and accurately, while also being able to play finger-style or pick easily. The app connects to both Audiobus and JACK, and has MIDI in and out support. Chords can be shared through Twitter. There is also a free version of the app that has full MIDI support, but does not support either Audiobus or JACK.

What's New in Version 1.4

Added support for Virtual MIDI input.
Switched audio output to always use the main speaker on the iPhone.
Assorted minor bug fixes.

Visit: itunes.apple.com