https://www.thegigrig.com/midi-driver
The GigRig MIDI Driver with Mi.1 Wireless will allow you to wirelessly connect the G2 MIDI+ app from your iOS device to your G2. When used in conjunction with The GigRig G2 MIDI+ App, it will enable you to have wireless control of your G2, backup your presets to your iOS device, use cue files to name your presets, record and playback midi G2 control files and debug midi messages.