iOS Musician Apps (567) Supported Technologies is Audio Unit (AU)

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SWAM Bass Trombone is a bass trombone sampler.

Price $29.99
Author Audio Modeling
Type Instrument
Instrument type Synth
Instrument sounds Winds
Supports Audio Unit (AU)
Rating total: 5 (1), current: 5 (1)
Released 01/30/2021
Updated 04/29/2026

SWAM Double Bass Trombone is a bass trombone sampler.

Price $29.99
Author Audio Modeling
Type Instrument
Instrument type Synth
Instrument sounds Winds
Supports Audio Unit (AU)
Rating total: 5 (2), current: 5 (2)
Released 01/30/2021
Updated 04/29/2026

NuRack is an AUv3 based multi-channel audio effects processor with a difference, it actually allows you to design your own custom effects using the building blocks provided.

Price $12.99
Author 4Pockets.com
Type Effect
Effect type All-in-one
Supports Audio Unit (AU)
Rating total: 4.71429 (42), current: 4.71429 (42)
Released 06/26/2020
Updated 04/29/2026

SWAM Solo Brass is a solo brass sampler.

Price $29.99
Author Audio Modeling
Type Instrument
Instrument type Synth
Instrument sounds Winds
Supports Audio Unit (AU)
Rating total: 4.66667 (3), current: 4.66667 (3)
Released 01/30/2021
Updated 04/29/2026

SWAM French Horn Bb is a french horn sampler.

Price $29.99
Author Audio Modeling
Type Instrument
Instrument type Synth
Instrument sounds Winds
Supports Audio Unit (AU)
Rating total: 5 (3), current: 5 (3)
Released 01/30/2021
Updated 04/29/2026

Roxsyn is a metamorphic guitar synthesizer.

Price $4.99 $19.99
Author Yonac Inc.
Type Instrument
Instrument type Synth
Instrument sounds Guitar
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.65169 (89), current: 4.65169 (89)
Released 08/05/2019
Updated 11/14/2024

These instruments are NOT sample libraries. Unlike sampling, which uses recordings to replicate the sound of an instrument, physical modeling doesn’t generate a sound as such but creates the conditions for the system to create it according to an external input (like someone playing on a keyboard).

Price $29.99
Author Audio Modeling
Type Instrument
Instrument type Synth
Instrument sounds Strings
Supports Audio Unit (AU)
Rating total: 4.07692 (13), current: 4.07692 (13)
Released 04/30/2021
Updated 04/29/2026

These instruments are NOT sample libraries. Unlike sampling, which uses recordings to replicate the sound of an instrument, physical modeling doesn’t generate a sound as such but creates the conditions for the system to create it according to an external input (like someone playing on a keyboard).

Price $29.99
Author Audio Modeling
Type Instrument
Instrument type Synth
Instrument sounds Bass
Supports Audio Unit (AU)
Rating total: 4.3 (10), current: 4.3 (10)
Released 04/30/2021
Updated 04/29/2026

MusiKraken is an Experimental MIDI Controller Construction Kit. Make music using your hands, face, voice or by rotating the device!

Price $9.99
Author Snarp
Type Tool
Supports Audio Unit (AU)
Rating total: 4.95652 (23), current: 4.95652 (23)
Released 11/24/2020
Updated 04/29/2026

Wotja X is a new cross-platform interface for the 'Wotja Generative Music System'.

Price Free
Author Intermorphic Limited
Type Host, Instrument
Instrument type Sampler, Synth
Instrument sounds Keyboards
Effect type All-in-one
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.71569 (204), current: 4.71569 (204)
Released 02/20/2018
Updated 04/30/2026

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.

Price $2.49 $9.99
Author Yonac Inc.
Type Effect
Effect type Guitar effects
Supports Audio Unit (AU)
Rating total: 4.57813 (64), current: 4.57813 (64)
Released 06/23/2022
Updated 07/08/2022

Kauldron is a synth with new modeling technology, combined with features help you create aggressive synth sounds full of rich analog textures with the fewest knob tweaks.

Price $2.49 $9.99
Author Yonac Inc.
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.63504 (137), current: 4.63504 (137)
Released 11/15/2017
Updated 12/22/2025

This app is a portable multitrack audio and MIDI recording studio featuring virtual instruments, editing with unlimited undo/redo, mixing, real-time effects, automation and much more!

Price $11.99
Author Davy Wentzler
Type Host, Instrument, Effect
Instrument type Sampler
Instrument sounds All-in-one
Effect type All-in-one
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.20988 (162), current: 4.20988 (162)
Released 01/07/2017
Updated 04/30/2026

Compose your own music for free with Dorico. Create beautiful music notation for one or two instruments quickly and easily with the on-screen keyboard, drum pads and fretboard. Play back instantly with the included sounds and shape the performance with powerful MIDI editing tools. When your piece is finished, share it as PDF, audio or MusicXML, or print directly to your AirPrint-enabled printer.

Price Free
Author Steinberg Media Technologies GmbH
Type Host
Supports Audio Unit (AU)
Rating total: 4.63224 (2004), current: 4.63224 (2004)
Released 07/27/2021
Updated 04/30/2026

Helium is a lightweight AUv3 MIDI sequencer plugin designed specifically for AUM. It supports up to 16 tracks of unlimited length with the ability to direct output to 16 channels on up to 16 MIDI output ports.

Price $8.99 $14.99
Author 4Pockets.com
Type Host
Supports Audio Unit (AU)
Rating total: 4.36538 (52), current: 4.36538 (52)
Released 04/22/2021
Updated 11/30/2025

PlaySections is an audio/video player that allows you to freely set marks and play back specific sections of your audio/video files.

Price $1.99
Author Hiroshi Kajihata
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Audio Unit (AU)
Rating total: 5 (14), current: 5 (14)
Released 10/30/2015
Updated 04/30/2026

DigiStix 2 is an AUv3 compatible drum machine and sampler plugin for your favourite DAW.

Price $14.99 $8.99
Author 4Pockets.com
Type Instrument
Instrument sounds Drums, Percussion
Supports Audio Unit (AU)
Rating total: 4.54167 (48), current: 4.54167 (48)
Released 07/01/2021
Updated 03/19/2026

BAM - Beat Maker & Music Maker is a groovebox-style music production app and plugin host

Price $19.99 $9.99
Author Imaginando Lda
Type Host
Supports Audio Unit (AU)
Rating total: 4.7732 (97), current: 4.7732 (97)
Released 11/06/2023
Updated 03/25/2026

This shimmer effect is a combination of effects that creates an etherial wall of sound. The effect combines a digital delay and pitch shifter to create multiple harmonies before entering a rich long reverb with controllable filtering. The resulting effect is a monsterously huge sound adding a spacious atmospheric quality to any lead instrument or vocal.

Price $7.99 $4.99
Author 4Pockets.com
Type Effect
Effect type Reverb, Delay, Echo, Pitch effects
Supports Audio Unit (AU)
Rating total: 4.2 (30), current: 4.2 (30)
Released 02/15/2019
Updated 08/29/2025

ToneBoosters Spectrogram shows a real-time spectrogram of the incoming audio signal. The ToneBoosters Spectrogram app captures the microphone input and processes the signals in real time.

Price Free
Author ToneBoosters
Type Tool
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.41859 (43), current: 4.41859 (43)
Released 09/08/2020
Updated 05/03/2026
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