iOS Musician Apps (69) Supported Technologies is Audio Unit (AU), Type is Tool

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.

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.

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.

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

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

Harmonizr is a vocal harmonizer offering a unique and fun user interface.

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

Visual Mixer is an audio unit plugin that puts the volume and pan controls for all your tracks together into one simple interface.

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

Dadachron is a standalone 12 track MIDI Step Sequencer to control all 12 outputs of your dada machines automat controller. Simply plug in your iPad to the automat via USB MIDI and start triggering notes, it works plug and play.

Velocity Filter is the way to make all your synthesizer patches respond to MIDI velocity in a natural and musical way.

The Cardboard MIDI Footswitch is a simple and cost-effective way of creating music and control MIDI using your smartphone.

The Cardboard MIDI Pedal is a simple and cost-effective way of creating music and control MIDI using your smartphone.

MIDI Tools is a suite of AUv3 MIDI audio units for iOS that lets you manipulate the MIDI messages inside your DAW’s effects chain, creating complex or otherwise impossible MIDI routings or effects.

midiSTEPs is a powerful and fun MIDI step sequencer app that sends MIDI note and CC messages to other music apps and external synthesizers.

This application is simply a container for the Audio Unit and also serves as the documentation for the AU. PhaseDelayArray is a bit of a strange effect. O.K, so, what is it? PhaseDelayArray has three effect units chained together in an interesting configuration, and one of these units is just a little bit twisted.

You can think of auGEN X in two ways:  first, it is a handy utility for making audio test sounds, and second, it is a performable creative sound design tool.

StreamByter is a plugin for creating custom MIDI effects.

Binaural Location goes beyond the simple pan control; it allows you to place your audio at a specific location anywhere in a virtual space around the listener. The location of the L and R control points on the screen controls the location of two virtual speakers. Based on the angle and distance from the speakers to the listener's ears, the app creates a realistic impression that the sound is actually coming from the specific location of the L and R points.

auSCOPE X is the Smart Audio Oscilloscope that lets you see your sound. Its Two Channel Design lets you look at stereo audio waveforms in real time in pixel-accurate resolution.