iOS Musician Apps (625) Supported Technologies is Audio Unit (AU)

MagicDeathEye is an emulation of a high-end tube compressor, available in AUv3 and interapp audio format.

Mammoth is a bass plugin featuring two-band signal processing that includes a bass maximizer, 3 types of drive, a tone stack, cabinet simulations and much more.

MangledVerb is a unique effect combining a rich reverb with devastating distortion.

Matrix Vocoder transforms your voice into an electronic instrument.

If you’re not patient enough to ride audio level manually, this AUv3 plugin saves you a lot of time.

Mersenne is a melodic percussion synthesizer that combines two FM synthesis modules, a noise generator and a resonator.

Metronomics is not only a metronome, but a tool designed to help build a solid sense of time and rhythmic security.  It's a new kind of metronome -- use Metronomics to generate random patterns, sequenced grooves, or a combination of both to help you practice with more than just your typical click track.

mfxConvert is a plugin for converting MIDI events in real time. It can be used for simple channel, note or controller remaps. However, it can also handle sophisticated conversions of event types, for example pitch bend to controller or note velocity to channel pressure.

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.

Some of the most commonly used MIDI manipulations in one handy package. This is MidiFire's Channel Strip module in AUv3 format.

MicroPitch is a fine-resolution pitch shifter for subtle tone fattening, plus delays for interesting slap back effects.

MicSwap is a Microphone Emulator and Recorder app.

So what is a midi echo? It is similar to the audio echo effect where copies of the original audio are repeated at regular time intervals but with some form of change (e.g. quieter). But unlike audio, midi is digital in nature (low resolution 8 bit mostly) and focused around the midi note on & off message used to control synths etc.

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

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

Play any synth or virtual instrument with your trusted old guitar, or record notation by playing it.

Control your MIDI devices using your lips. Just say "wah wah" and send corresponding MIDI events wirelessly.

MIDI Strummer is an AUv3 plugin designed to simulate guitar strumming and picking techniques. It can used to generate MIDI note data which can be sent to either an external synth of choice or the internal soundfont engine.

MIDI Tape Recorder is an open source Audio Unit v3 plugin with a radically different approach towards MIDI recording.

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.