iOS Musician Apps (607) Supported Technologies is Audio Unit (AU)

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

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.

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

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

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

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

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

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

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.

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

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

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.

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

"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.

StreamByter is a plugin for creating custom MIDI effects.

Galileo Organ 2 is a tonewheel and transistor organ app.

RX950 Classic AD/DA Converter is a Classic AD/DA Converter emulator.

FabFilter Pro-Q 2 is a transparent, high-quality equalizer plug-in for mixing and mastering purposes, with up to 24 bands and a gorgeous interface for easy and precise editing.

Quanta is a six-voice granular synthesizer for iOS11+ in both standalone (with Inter-App Audio) and AudioUnit V3 formats.

Woodpressor is a high-end audio compressor. It is both a standalone app supporting IAA (Inter-App Audio) and an AUv3 audio unit plugin.