iOS Musician Apps (288) Supported Technologies is Audio Unit (AU), Type is Effect

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FilterMorph plugin takes the concept of a traditional audio filter and pairs it with overdrive, bit crunching and tape delay to perform some incredibly neat real-time or beat synced automation effects.

Price $5.99
Author 4Pockets.com
Type Effect
Effect type Equalizer, Filter, Distortion, Drive etc.
Supports Audio Unit (AU)
Rating total: 4.2 (5), current: 4.2 (5)
Released 12/13/2018
Updated 09/08/2025

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

Price $5.99
Author 4Pockets.com
Type Effect
Effect type Compressor, Limiter, Gate
Supports Audio Unit (AU)
Rating total: 3.33333 (3), current: 3.33333 (3)
Released 10/15/2018
Updated 09/04/2025

This is an AUv3 compatible noise gate which can be used as a plugin with your favorite DAW such as Cubasis, Meteor, GarageBand or Auria.

Price $5.99
Author 4Pockets.com
Type Effect
Effect type Compressor, Limiter, Gate
Supports Audio Unit (AU)
Rating total: 4.5 (4), current: 4.5 (4)
Released 09/23/2018
Updated 09/04/2025

This is an AUv3 compatible stereo graphic equalizer 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 Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.54545 (11), current: 4.54545 (11)
Released 09/02/2018
Updated 11/30/2019

Blue Mangoo Parametric Equalizer is an audio unit plugin, with six bands of filter controls.

Price $5.99
Author Blue Mangoo Consulting Company Limited
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.26316 (19), current: 4.26316 (19)
Released 08/02/2018
Updated 12/11/2020

VC-1 is a vintage voiced chorus effect capable of delivering many classic chorus sounds but it doesn't stop there.

Price $5.99
Author Kai Aras
Type Effect
Effect type Chorus, Flanger, Phaser etc.
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.75 (4), current: 4.75 (4)
Released 09/05/2017
Updated 01/24/2020

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

Dual Digital Delay FX. Two separate (stereo) delay lines allow for a wide range of effects ranging from basic slapback and ping-ping type echos to complex modulations and soundscapes.

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: 3.86667 (15), current: 3.86667 (15)
Released 03/22/2016
Updated 04/14/2022

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 (20), current: 5 (20)
Released 08/29/2021
Updated 09/07/2025

Koshiba is a 16-step gate sequencer plug-in effect that can transform a sustained sound into a rhythmic phrase.

Price $5.00
Author iceWorks, Inc.
Type Effect
Effect type Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.70587 (17), current: 4.70587 (17)
Released 10/26/2020
Updated 09/07/2025

Yukawa is an AUv3 compatible multi-effects plug-in that combines a tempo-synchronized multi-tap sequence delay that produces rhythmic phrases, a modulatable stereo delay, and a DJ mixer-style filter.

Price $5.00
Author iceWorks, Inc.
Type Effect
Effect type Equalizer, Filter, Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.78125 (32), current: 4.78125 (32)
Released 09/09/2020
Updated 09/07/2025

With AnyAmpIR, I don't give you any amp, I give you the ability to play any amp immediately.

Price $4.99
Author 衍 孟
Type Effect
Effect type Guitar effects, Bass effects, Other
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 5 (5), current: 5 (5)
Released 03/22/2023
Updated 03/28/2023

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: 4.71929 (57), current: 4.71929 (57)
Released 10/02/2021
Updated 06/17/2024

Smoov is a soft, clean and transparent sounding program-dependent AUv3, IAA & standalone compressor.

Price $4.99
Author Caelum Audio
Type Effect
Effect type Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.875 (8), current: 4.875 (8)
Released 02/12/2021
Updated 11/04/2022

The Quinta Pitch Machine is more than your standard octave in that it not only gives you notes an octave up and an octave down, but also gives you a fifth up.

Price $4.99
Author Nembrini Audio
Type Effect
Effect type Pitch effects
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 3.28571 (7), current: 3.28571 (7)
Released 01/31/2021
Updated 10/11/2021

BLEASS Slow Machine can deepen any beat by completely or partially slowing down the audio signal, transform epic leads into heavy basses, and add some “tape stop” effect with precision either by touching the X/Y Stop trigger, or by dialing in precise sequence automations

Price $6.99 $4.99
Author BLEASS
Type Effect
Effect type Pitch effects, Other
Supports Audio Unit (AU)
Rating total: 4.73684 (38), current: 4.73684 (38)
Released 02/01/2021
Updated 09/26/2025

Schlap is a characterful, colourful and aggressive sounding program-dependent AUv3, IAA & standalone compressor.

Price $4.99
Author Caelum Audio
Type Effect
Effect type Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.94118 (17), current: 4.94118 (17)
Released 12/31/2020
Updated 11/04/2022

High quality real time reverb AudioUnit effect, for everything between small rooms, resonators, and infinitely large spaces.

Price $4.99
Author Kymatica AB
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 5 (14), current: 5 (14)
Released 12/08/2020
Updated 11/12/2021

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