iOS Musician Apps (568) Supported Technologies is Audio Unit (AU)

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During a routine mining expedition in the outer regions of the galaxy five mysterious boxes of unknown origin were found. Rumours among the workers spread quickly that there was a strange feeling being around these boxes, as if time flows in a different way, not just forward but sometimes also folding back on itself. The miners nicknamed them, the five boxes of reverberation. After the excavation process, to study them more closely, it was decided to transport them back to earth.

Price $4.99
Author Erik Sigth
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.71429 (56), current: 4.71429 (56)
Released 10/02/2021
Updated 06/17/2024

The Black Distortion plugin modeled on RAT2* distortion pedal will be your go-to distortion plugin for every recording, whether it’s rock, blues, punk, or jazz.

Price Free
Author Nembrini Audio
Type Effect
Effect type Distortion, Drive etc., Guitar effects
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.95455 (22), current: 4.95455 (22)
Released 09/29/2021
Updated 09/30/2021

Neon is a lightweight digital audio editor and recording plugin compatible with any AUv3 host.

Price $7.99 $14.99
Author 4Pockets.com
Type Instrument
Instrument type Sampler
Instrument sounds Other
Supports Audio Unit (AU)
Rating total: 3.96296 (27), current: 3.96296 (27)
Released 09/16/2021
Updated 02/20/2026

polybeat is an advanced and extremely flexible drum and percussion sequencer able to generate complex polyrhythmic and polymetric rhythmic patterns.

Price $7.99
Author Corne Driesprong
Type Tool
Instrument sounds Drums, Percussion
Supports Audiobus, Audio Unit (AU)
Rating total: 4.45 (20), current: 4.45 (20)
Released 09/10/2021
Updated 05/22/2022

The EQP-1A based on Classic Program Equalizer from the '60s, original EQ is renowned for its unique ability to boost and cut the same frequencies simultaneously, thereby creating a resonant shelf, the EQP-1A faithfully models the overbuilt transformers and complex tube amplifiers of the original hardware.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 5 (15), current: 5 (15)
Released 09/08/2021
Updated 12/29/2025

The MEQ-5 based on Classic Mid-Range Equalizer from the '70s, with two bands of midrange boost and one band of midrange dip, the MEQ-5 gets the very best out of the «power region» where guitars and vocals can make or break a mix.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 5 (6), current: 5 (6)
Released 09/08/2021
Updated 12/29/2025

The EQP-1A based on Classic Program Equalizer from the '60s, original EQ is renowned for its unique ability to boost and cut the same frequencies simultaneously, thereby creating a resonant shelf, the EQP-1A faithfully models the overbuilt transformers and complex tube amplifiers of the original hardware.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 5 (5), current: 5 (5)
Released 09/08/2021
Updated 12/29/2025

Kompresor is a versatile and powerful, yet easy to use, compressor.

Price $24.99
Author Shattered Glass Audio
Type Effect
Effect type Compressor, Limiter, Gate
Supports Audio Unit (AU)
Rating total: 5 (3), current: 5 (3)
Released 09/07/2021
Updated 11/18/2025

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 01/03/2026

Every now and then, a new classic is born, they come in the shape of a revisited classic or a whole new world with monster tone and myriads of options, with its 3 distinctly voiced channels morphing past, present and future tones.

Price $19.99
Author Nembrini Audio
Type Effect
Effect type Distortion, Drive etc., Guitar effects
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 5 (8), current: 5 (8)
Released 08/30/2021
Updated 09/24/2021

MIDIculous is the most feature-rich music learning software for students and teachers. At its core it is a high quality MIDI File Player where you can use the stock General MIDI soundest or you can use AUv3 apps already installed on your iPad.

Price Free
Author MIDIculous LLC
Type Host
Supports Audio Unit (AU)
Rating total: 3.5 (2), current: 3.5 (2)
Released 08/30/2021
Updated 02/17/2026

Kajita combines two-stage multi-tap stereo delay with reverb, allowing you to create complex spatial effects.

Price $5.00
Author iceWorks, Inc.
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 5 (19), current: 5 (19)
Released 08/29/2021
Updated 09/07/2025

VADrum2 is a production tool to create drum tracks on iPhone, iPad and Mac. You can program drum sequence, mix the drum sounds and export audio file to be used for production or to be shared with your friends.

Price $5.99
Author Ryo Togawa
Type Instrument
Instrument type Sampler, Synth
Instrument sounds Drums, Percussion
Supports Audio Unit (AU), Ableton Link
Rating total: 4.5 (16), current: 4.5 (16)
Released 08/25/2021
Updated 09/18/2023

J_NO Chorus pays homage to a very famous effect from the 80s by re-creating the warmth a bucket brigade chorus gives.

Price Free
Author Adam Bell
Type Effect
Effect type Chorus, Flanger, Phaser etc.
Supports Audio Unit (AU)
Rating total: 5 (23), current: 5 (23)
Released 08/19/2021
Updated 09/02/2021

Thanks to it's true VA synthesis engine, the use of analog-modelled non-linear filters and extensive modulation options, Flowtones sounds warmer and more analog than digital romplers and wavetable-based synths.

Price $9.99
Author ToneBoosters
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.64865 (37), current: 4.64865 (37)
Released 08/10/2021
Updated 09/29/2025

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

Price $6.99 $9.99
Author quantovox
Supports Audio Unit (AU)
Rating total: 4.77778 (27), current: 4.77778 (27)
Released 08/05/2021
Updated 10/16/2025

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: 4.63469 (1908), current: 4.63469 (1908)
Released 07/27/2021
Updated 03/12/2026

SideBand Remix is an AUv3 plugin for final mixing and mastering. It separates the phantom center from sideband (L/R) content which is what give a stereo track its width, and lets you remix it.

Price $9.99
Author 4Pockets.com
Type Effect
Effect type Equalizer, Filter, Other
Supports Audio Unit (AU)
Rating total: 4.66667 (6), current: 4.66667 (6)
Released 07/19/2021
Updated 12/13/2025

SoundSaw is a complex sound processing app with easy-to-use controls designed to distort the sound of musical instruments or voice, and give the sound the aesthetics and atmosphere of noise, lo-fi, chiptune and experimental music scene.

Price $5.99
Author Igor Vasiliev
Type Effect
Effect type Distortion, Drive etc., Other
Supports Audiobus, Audio Unit (AU)
Rating total: 4.92307 (13), current: 4.92307 (13)
Released 07/19/2021
Updated 08/16/2022

Great for acoustic guitars or electric guitars with a piezo, Acoustic Voice pream plugin promotes getting lost in creative acoustic tracks production with no boundaries.

Price $14.99
Author Nembrini Audio
Type Effect
Effect type Guitar effects, Other
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.83333 (6), current: 4.83333 (6)
Released 07/16/2021
Updated 09/27/2021
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