iOS Musician Apps (568) Supported Technologies is Audio Unit (AU)

Galileo Organ 2 is a tonewheel and transistor organ app.

StreamByter is a plugin for creating custom MIDI effects.

"StepPolyArp Unit" is a real-time polyphonic and polyrhythmic MIDI step arpeggiator and step sequencer. It can be used as a standalone application or an Audio Unit MIDI effect plug-in.

AudioKit Synth One is a completely free & open-source professional iOS Synthesizer. 

apeMatrix is a unique AU/IAA routing tool that gives you total control over what you want to do and how you want to do it.

DAW LP is an Audio Unit effect that emulates the sound of a vinyl disc (and player).

With this instrument you can transform any sound into a playable musical instrument via a technique known as Granular Synthesis.

DerVoco is a vintage vocoder emulation. DerVoco uses analog modelled components including filters, envelope followers and companders to create a warm vintage sound instead of digital techniques like FFT.

SynthMaster One iOS is the mobile version of KV331 Audio's SynthMaster One software synthesizer.

DLYM is a ‘Delay Modulator’ plugin which produces flanger and chorus style effects using Imaginando’s powerful processing technology.

A streaming sound palette for experimental musicians, sound designers and artists. Includes over 40 preset randomized Internet audio streams.  

Whole guitar sound with innovative distortion effect, speaker simulation and reverb.

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

Kronecker is a synthesizer with a mechanism to make sounds many times like a rhythm machine each time you press a keyboard.

Perforator is a rhythmic gating audio effect: it will creatively snip, cut, gap and filter incoming audio to create rhythmic patterns out of sustained sounds.

Stereo Modulator is an AU3 effect that converts mono sound into stereo, with an adjustable width and optional stereo modulation.

ADverb2 is an accurate model of a vintage digital plate reverb rack unit from the 80s, with a few modern tricks up its sleeve.

DAW Cassette is an Audio Unit effect that emulates the sound of a classical tape deck.

VOLT is a virtual analog synthesizer designed to create classic synth sounds while emphasising expressive play.

AAS Objeq transforms those beats to sound closer to a real percussion instrument.