iOS Musician Apps (67) Supported Technologies is Audio Unit (AU), Type is Tool

Plotony is a harmonograph simulator that transforms MIDI input into beautiful, animated drawings.

OSCILLOSCOPE & SPECTROGRAM is an audio analyzer app and audio unit plugin.

MIDISpy - MIDI Monitor. A handy little utility for monitoring MIDI connectivity.

MidiFire is a free-form, modular AUv3 MIDI effect host, CoreMIDI router, processor, monitor and clock source from the makers of MidiBridge.

Does the World need another MIDI Monitor? We thought so, and it's free, so you have nothing to lose to add this handy little utility to your app collection.

Physicles is a container of physics-based Audio Unit MIDI plugins. These AU MIDI plugins generate MIDI messages through the use of an underlying physics engine, which models the physical interactions between various entities.

RouteMIDI, in conjunction with a DAW such as Garageband, will allow you to create tracks that will use any of your external MIDI synthesizers for that track, as alternate to instruments etc. built into the DAW.