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

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LRC7 is a seven-band EQ. It includes low shelf, high shelf, parametric peak/cut, notch, and various Butterworth low-pass and high-pass filters.

Price Free
Author Neon Silicon
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.36 (25), current: 4.36 (25)
Released 04/23/2021
Updated 05/27/2022

BitJuggler is an audio plugin to simulate vintage digital processing and to recreate digital imperfections.

Price $6.99
Author ToneBoosters
Type Effect
Effect type Other
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.35714 (14), current: 4.35714 (14)
Released 11/07/2020
Updated 08/27/2024

Ravenscroft Grand is a piano sampler.

Price $35.99
Author UVI
Type Instrument
Instrument type Sampler
Instrument sounds Keyboards, Piano
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.35294 (306), current: 4.35294 (306)
Released 06/26/2017
Updated 09/02/2022

GeoShred Control is a stand alone MIDI/MPE controller based on GeoShred.

Price Free
Author Wizdom Music LLC
Type Controller
Supports Audio Unit (AU)
Rating total: 4.33636 (110), current: 4.33636 (110)
Released 01/25/2018
Updated 05/19/2025

The ERS 250 reverb audio plugin was originally designed and sold by Harrie Munnik and his Dutch company EmptyRoomSystems.

Price $13.99
Author Christian Siedschlag
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.33333 (6), current: 4.33333 (6)
Released 09/03/2021
Updated 01/22/2025

Mrh159 Brown Sound Guitar Amplifier plugin modeled on a vintage Marshall Super Lead 1959* 100W which is arguably the most famous amp of all time.

Price $19.99 $9.99
Author Nembrini Audio
Effect type Distortion, Drive etc., Guitar effects
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.33333 (9), current: 4.33333 (9)
Released 06/12/2021
Updated 09/27/2021

It's vintage and It's very warm. All the sounds come from impulse responses grappled on the web.

Price $3.99
Author Julien Faure
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 4.33333 (6), current: 4.33333 (6)
Released 02/01/2021
Updated 11/24/2021

Back to fundamentals….Compositional practice is about constructing and organizing multiple layers of sonic material at first step. In production, we use DAW’s to present this material on separate tracks with either synthesized sounds in real time, or recorded material as sound files or live audio input.

Price $29.99
Author SonicPlanet Audio Video Teknolojileri Anonim Sti.
Type Effect
Effect type Other
Supports Audio Unit (AU)
Rating total: 4.33333 (6), current: 4.33333 (6)
Released 10/31/2020
Updated 02/21/2024

Flynth is a synthesizer by Fingerlab, designed for musicality and easy use.

Price Free
Author Fingerlab
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.33333 (51), current: 4.33333 (51)
Released 07/22/2020
Updated 06/27/2024

The WoodStepper is a sequencer having both audio and midi out.

Price $10.99 $5.49
Author Woodman's Immaculate Maple Syrup Studio
Type Tool
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.33333 (12), current: 4.33333 (12)
Released 06/01/2019
Updated 07/01/2024

Up to eight pitch shifted voices are created from vocal input or instruments.

Price $8.99
Author Harry Gohs
Type Effect
Effect type Chorus, Flanger, Phaser etc., Pitch effects
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.33333 (9), current: 4.33333 (9)
Released 06/09/2017
Updated 01/06/2018

midiSTEPs is a powerful and fun MIDI step sequencer app that sends MIDI note and CC messages to other music apps and external synthesizers.

Price $9.99
Author Arthur Kerns
Type Host, Tool
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.33333 (15), current: 4.33333 (15)
Released 10/10/2015
Updated 03/14/2021

Play any synth or virtual instrument with your trusted old guitar, or record notation by playing it.

Price Free
Author Jam Origin
Type Controller
Supports Audio Unit (AU)
Rating total: 4.32824 (131), current: 4.32824 (131)
Released 07/03/2012
Updated 11/17/2020

A 3-in-1 zero latency virtual guitar pedal covering creamy BBD analog delay, lush saturation plate reverb and Class A and Class A/B saturation.

Price $19.99
Author PULSAR NOVATION BILGISAYAR PROGRAMCILIK HIZMETLERI TICARET LIMITED SIRKETI
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 4.32558 (43), current: 4.32558 (43)
Released 07/02/2021
Updated 01/10/2025

Chameleon is an AUv3 compatible sampler instrument plugin for your favourite DAW.

Price $12.99
Author 4Pockets.com
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.325 (40), current: 4.325 (40)
Released 03/23/2019
Updated 01/14/2025

ToneStack PRO is a guitar effects processor.

Price $9.99
Author Yonac Inc.
Type Effect
Effect type Guitar effects
Supports Audio Unit (AU)
Rating total: 4.31429 (70), current: 4.31429 (70)
Released 04/26/2021
Updated 05/12/2025

Specific sound morphing capabilities enables you to easily create complex evolving sound scapes, vocal phrases or stunning rhythms simply by choosing up to four sound sources from a predefined set.

Price $12.99 $7.99
Author Harry Gohs
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.3125 (16), current: 4.3125 (16)
Released 05/13/2021
Updated 12/05/2024

ScaleBud is a music theory tool for composers, artists and learners. It has more than 40 most popular scales and counting.

Price $4.99
Author Cem Olcay
Type Tool
Supports Audiobus, Audio Unit (AU)
Rating total: 4.3125 (32), current: 4.3125 (32)
Released 08/04/2018
Updated 11/17/2020

Now available as an Audio Unit extension (AUv3) allowing it to act as a powerful MIDI sequencer and clip launcher.

Price Free
Author Imaginando Lda
Type Tool
Supports Audio Unit (AU)
Rating total: 4.30804 (672), current: 4.30804 (672)
Released 03/04/2015
Updated 06/20/2025

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 07/01/2025