SampleTank for iOS, the first pro-quality, sample-based sound and groove workstation, has been updated. SampleTank is now available as a universal app for iPhone, iPod touch and iPad, through the iTunes App store. The update adds a 4-track MIDI recorder, a new beat-making interface, an expanded set of instruments and patterns, improved compatibility with third party docks and much more. It can be played directly from the app or can be used live with any MIDI keyboard or pad controller with the iRig MIDI interface adapter.