iOS Musician Apps (563) Supported Technologies is Audio Unit (AU)

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NFM is an intuitive FM synthesizer with a streamlined interface.

Price $14.99
Author Nikolozi Meladze
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audio Unit (AU)
Rating total: 4.91176 (34), current: 4.91176 (34)
Released 07/29/2017
Updated 04/23/2025

A simple but straightforward flange audio effect to give you that nice retro feel.

Price $0.99
Author Brad Howes
Type Effect
Effect type Chorus, Flanger, Phaser etc.
Supports Audio Unit (AU)
Rating total: 5 (1), current: 5 (1)
Released 02/24/2021
Updated 02/27/2026

A simple but straightforward phaser audio effect to give you that nice retro feel.

Price $0.99
Author Brad Howes
Type Effect
Effect type Chorus, Flanger, Phaser etc.
Supports Audio Unit (AU)
Rating total: 3 (1), current: 3 (1)
Released 03/11/2021
Updated 02/27/2026

This versatile saturation effect processor comes packed with 40 Factory Presets, from classic stereo Drive to crazy metallic bitcrushed Saturations.

Price $6.99
Author BLEASS
Type Effect
Effect type Other
Supports Audiobus, Audio Unit (AU)
Rating total: 5 (8), current: 5 (8)
Released 11/28/2020
Updated 09/12/2025

BLEASS Motion EQ is a 3-band equalizer with multi-outs and 2 LFOs.

Price $6.99
Author BLEASS
Type Effect
Effect type Equalizer, Filter
Supports Audiobus, Audio Unit (AU)
Rating total: 4.96296 (27), current: 4.96296 (27)
Released 12/14/2020
Updated 06/02/2022

BLEASS Compressor is a tool for iOS musicians offering external sidechain input, input filters and real-time visualization with very low CPU usage.

Price $4.99
Author BLEASS
Type Effect
Effect type Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.7037 (27), current: 4.7037 (27)
Released 11/10/2020
Updated 06/17/2022

MicSwap is a Microphone Emulator and Recorder app.

Price Free
Author Future Moments
Type Effect
Effect type Vocal effects, Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.50028 (6822), current: 4.50028 (6822)
Released 12/07/2014
Updated 03/06/2026

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.

Price $12.99
Author 4Pockets.com
Type Tool
Supports Audio Unit (AU)
Rating total: 4.27451 (51), current: 4.27451 (51)
Released 09/25/2020
Updated 08/28/2025

The hybrid synthesis algorithm on which Addictive Pro is based provides you with efficient means for easy control of complex sounds far beyond usual sound synthesis methods.

Price $5.99
Author Harry Gohs
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.73684 (19), current: 4.73684 (19)
Released 09/21/2016
Updated 11/27/2024

If you play a musical instrument, this app should be supported by you lower the speed and play when you copy of a musical piece.

Price Free
Author Loop-Sessions.LLC.
Type Effect
Effect type Pitch effects
Supports Audio Unit (AU)
Rating total: 3.42105 (19), current: 3.42105 (19)
Released 04/26/2013
Updated 03/22/2026

If you play a musical instrument or sing a song, this app should be supported by you higher / lower the pitch.

Price Free
Author Loop-Sessions.LLC.
Type Effect
Effect type Equalizer, Filter, Pitch effects
Supports Audio Unit (AU)
Rating total: 4.40963 (83), current: 4.40963 (83)
Released 07/16/2013
Updated 03/22/2026

This app is a music player that can process the following effects in real time: Time stretch (0.5-2.0 double speed), Pitch shift (-1 ~ +1 octave), 10 band equalizer.

Price $0.99
Author Loop-Sessions.LLC.
Type Effect
Effect type Equalizer, Filter, Pitch effects
Supports Audio Unit (AU)
Rating total: 3.8 (25), current: 3.8 (25)
Released 11/15/2013
Updated 03/22/2026

ID700 is a software synthesizer based on the voice architecture of the Buchla 700. Sound generation is achieved primarily via FM synthesis and waveshaping.

Price $12.99
Author Jonathan Schatz
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.76377 (127), current: 4.76377 (127)
Released 04/12/2021
Updated 03/23/2026

Play or save the files with added reverb. Use play through mode or Audiobus for realtime reverberation.

Price Free
Author Markus Sigg
Type Effect
Effect type Reverb, Delay, Echo
Supports Audiobus, Audio Unit (AU)
Rating total: 4.71875 (32), current: 4.71875 (32)
Released 04/26/2013
Updated 03/24/2026

iMPC Pro fuses innovative song creation with the iconic MPC workflow.

Price $24.99
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: 4.44665 (1059), current: 4.44665 (1059)
Released 12/14/2017
Updated 03/24/2026

FabFilter Pro-Q 3 is an EQ plug-in with up to 24 bands, analog modeling, dynamic EQ, linear phase processing.

Price $29.99
Author FabFilter
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.74468 (47), current: 4.74468 (47)
Released 06/21/2019
Updated 03/23/2026

RF-1 is an Algorithmic Reverb (AU, AB, IAA, Standalone).

Price $5.99
Author Kai Aras
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.58333 (12), current: 4.58333 (12)
Released 10/13/2016
Updated 10/05/2020

Designed to deliver authentic dub sounds and effects, iTALIZER at it's heart is a monophonic synthesizer paired with an authentic tape echo emulation.

Price $9.99
Author Kai Aras
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.125 (8), current: 4.125 (8)
Released 09/27/2017
Updated 04/29/2024

FD-1 is a Semi-Modular Effect Plugin including dedicated Filter, Delay and Modulation sections.

Price $9.99
Author Kai Aras
Type Effect
Effect type Equalizer, Filter, Reverb, Delay, Echo, Modulation effects
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.625 (32), current: 4.625 (32)
Released 11/07/2019
Updated 09/24/2020

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

Price $14.99
Author Kai Aras
Type Controller
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.77323 (269), current: 4.77323 (269)
Released 11/20/2018
Updated 10/14/2025