iOS Musician Apps (587) Supported Technologies is Audio Unit (AU)

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Ratshack Reverb is a detailed model of that classic of classics, the Realistic Electronic Reverb. Now, you can have the sound of everyone's first analog delay unit, without ever having to change batteries!

Price $0.99
Author Audio Damage, Inc.
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.71429 (21), current: 4.71429 (21)
Released 10/20/2018

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

Price $9.99
Author James Navarro
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audiobus, Audio Unit (AU)
Rating total: 4.05714 (35), current: 4.05714 (35)
Released 10/23/2018
Updated 09/20/2023

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.

Price $1.99
Author anthony saunders
Type Tool
Supports Audiobus, Audio Unit (AU)
Rating total: 3.5 (8), current: 3.5 (8)
Released 10/25/2018
Updated 05/08/2019

Epic 64-voice Virtual Analog / PCM iPad Synth. Inspired by the Digital Synths of the 80s and 90s.

Price Free
Author Audiobus Pty Ltd
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.80605 (1985), current: 4.80605 (1985)
Released 10/30/2018
Updated 03/08/2025

This app is realtime voice changer that can work without headphones. When you speak, it will speak together with you making your voice to sound like alien robot.

Price $0.99
Author Aleksandar Mlazev
Type Effect
Effect type Vocal effects, Other
Supports Audio Unit (AU)
Rating total: 2 (4), current: 2 (4)
Released 10/30/2018
Updated 03/05/2023

Kleverb is an algorithmic reverb effect.

Price $19.99
Author Klevgränd produkter AB
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 4.76923 (13), current: 4.76923 (13)
Released 10/31/2018
Updated 09/17/2021

Electrogene is a low fidelity audio effect combining bit-crusher, modulation, saturation and filter with scope visualizer.

Price $4.99
Author BACKPULLVER SOFTWARE LTD OOD
Type Effect
Effect type Equalizer, Filter, Distortion, Drive etc., Modulation effects
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.76923 (13), current: 4.76923 (13)
Released 11/05/2018
Updated 02/19/2024

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

Price $5.99
Author 4Pockets.com
Type Effect
Effect type Pitch effects
Supports Audio Unit (AU)
Rating total: 3 (8), current: 3 (8)
Released 11/05/2018
Updated 01/28/2019

This audio shredder does just what is says, it shreds incoming audio (usually strings or lengthy sustained chords) into bite size pieces, adds an envelope and passes through a filter of choice.

Price $7.99
Author 4Pockets.com
Type Effect
Effect type Other
Supports Audio Unit (AU)
Rating total: 3.66667 (6), current: 3.66667 (6)
Released 11/09/2018
Updated 03/26/2025

A different kind of drumsynth. Ruismaker Noir presents a hybrid approach between synthesized drums and rhythmic bass sounds - coming together in the fully integrated step sequencer.

Price $9.99
Author Bram Bos
Type Instrument
Instrument type Synth
Instrument sounds Drums, Percussion
Supports Audio Unit (AU)
Rating total: 4.79348 (92), current: 4.79348 (92)
Released 11/11/2018
Updated 08/31/2023

AUv3 Midi sequence generator which generates musical evolving sequences  that you can further automate or modulate via midi.

Price $3.99
Author Pagefall limited
Type Tool
Supports Audio Unit (AU)
Rating total: 4.47222 (36), current: 4.47222 (36)
Released 11/15/2018
Updated 06/02/2022

PhaseThree is a detailed model of the MuTron Bi-Phase, with all the lovely sound of that unit (along with its foibles and quirks.)

Price $4.99
Author Audio Damage, Inc.
Type Effect
Effect type Chorus, Flanger, Phaser etc.
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.64286 (14), current: 4.64286 (14)
Released 11/15/2018

"QuantiChord" is a MIDI effect that generates chords from incoming notes and quantizes the results to a pre-defined scale. It can be used as a standalone application or as an Audio Unit MIDI effect plug-in.

Price $12.99
Author Laurent Colson
Type Tool
Supports Audiobus, Audio Unit (AU)
Rating total: 4 (11), current: 4 (11)
Released 11/16/2018
Updated 11/13/2024

KB-1 is a an expressive virtual keyboard designed for a multitude of scenarios.

Price $12.99 $7.99
Author Kai Aras
Type Controller
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.83399 (253), current: 4.83399 (253)
Released 11/20/2018
Updated 08/15/2024

This is a AUv3 compatible audio effect which can be used as plugin with your favourite DAW such as Cubasis, Meteor, Auria or GarageBand.

Price $4.99
Author 4Pockets.com
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Released 11/29/2018
Updated 05/06/2025

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

Price $2.99
Author Blue Mangoo Consulting Company Limited
Type Effect
Effect type Reverb, Delay, Echo
Supports Audiobus, Audio Unit (AU)
Rating total: 4.8 (5), current: 4.8 (5)
Released 12/01/2018
Updated 05/28/2024

This AUv3 plugin effect is a complex spectral saturation processor simulating a set of different analog gear in a new and unique way.

Price $19.99
Author Klevgränd produkter AB
Type Effect
Effect type Guitar effects, Other
Supports Audio Unit (AU)
Rating total: 5 (18), current: 5 (18)
Released 12/04/2018
Updated 09/17/2021

Aparillo is an advanced 16 voice FM synth tailored for complex sound structures , majestic motions, moving and evolving soundscapes and atmospheres that are perfect for film, TV or games.

Price Free
Author Sugar Bytes GmbH
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audio Unit (AU), Ableton Link
Rating total: 4.85771 (492), current: 4.85771 (492)
Released 12/05/2018
Updated 01/22/2025

NanoStudio 2 is a powerful music production environment for recording, synthesis, sampling, arranging, editing and mixing.

Price Free
Author Blip Interactive Ltd
Supports Audio Unit (AU), Ableton Link
Rating total: 4.52493 (341), current: 4.52493 (341)
Released 12/07/2018
Updated 08/05/2021

iMPC Pro 2 for iPhone fuses innovative song creation with the MPC workflow.

Price $12.99 $2.99
Author Akai Professional
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion, Other
Supports Inter-App Audio (IAA), Audio Unit (AU), Ableton Link
Rating total: 4.65726 (1774), current: 4.65726 (1774)
Released 12/10/2018
Updated 05/16/2025
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