iOS Musician Apps (562) Supported Technologies is Audio Unit (AU)

Spatializer is a great choice if you want to widen your sounds.

Spectrum is a collection of Audio Unit ports of popular eurorack synthesizer modules.

Spinn is a 4 band rotating modulation effect. It’s a bit similar to a Leslie but not aiming to replicate this character. 4 rotors with individual speed controls, acceleration and deceleration times, adjustable size and modulation.

Spring Reverb models the sound and character of popular spring reverbs found in guitar amplifiers, popularized by Surf, Garage and Rockabilly music.

SquareSynth is a hybrid analog/8bit style synthesizer. It takes features from the NES console, and the Commodore 64 personal computer.

STARK is a fully fledged amplifier simulator consisting of four modules: Amplifier, Cabinet, Room and effects slots. These modules are processing audio separately, which makes it possible to combine different amplifiers with different cabinets and rooms.

Steel Guitar PRO is a guitar processor that combines cutting-edge realtime audio generation with control interface. It provides guitar models, built-in amps & FX processing, MIDI control, AUv3, and good customizability.

StepBud is a MIDI Sequencer with Audio Unit AUv3 plugin, Audiobus and Ableton Link.

"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.

Blue Mangoo Stereo Delay is designed to be the go-to app a for simple, musically tasteful delay effect.

This is an AUv3 compatible stereo graphic equalizer plugin which can be used as a plugin with your favourite DAW such as Cubasis, Auria, Meteor or GarageBand.

This is an audio unit plugin that puts a small delay between the left and right channels.

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

Stereo Phaser is a phaser effect that can run in stereo mode.

Stereo Width Control is an Audio Unit plugin that allows you to increase or decrease the stereo width of 4 adjustable frequency bands.

Echo effect Audio Unit V3 inspired by the mayan pyramids acoustic echo. I come up with a complex phase modulated frequency of the echo so you can change it’s frequency signature. It is kind of changing the material of the reflective surface and I called it “Stone F”.

STRATOSPHERE CLOUD REVERB is an audio unit plugin effect inspired by the Cloud Reverb patch in a very well-loved modern classic reverb pedal.

StreamByter is a plugin for creating custom MIDI effects.

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