Inter-App (IAA) Effects (176)

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Inter-App Audio (IAA) technology compatible effect application list for iOS

Bit Maestro is an AUv3 bit crusher that goes beyond regular bit rate reduction, allowing you to affect and manipulate your sound at the individual bit level.

Price $2.99 $4.99
Author David Blake
Type Effect
Effect type Distortion, Drive etc., Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.76923 (26), current: 4.76923 (26)
Released 02/20/2020
Updated 03/20/2020

Import audio and instantly get a mastered version. Immediately hear a boost in volume and overall sweetening of the mix.

Price Free
Author Future Moments
Type Effect
Effect type All-in-one, Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.50059 (2545), current: 4.50059 (2545)
Released 07/14/2016
Updated 02/04/2026

Import audio and instantly get a mastered version. Immediately hear a boost in volume and overall sweetening of the mix.

Price $99.99
Author Future Moments
Type Effect
Effect type Equalizer, Filter, Compressor, Limiter, Gate, Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.66005 (656), current: 4.66005 (656)
Released 06/13/2017
Updated 02/04/2026

A brickwall peak limiting app, for the complete control of your audio volume.

Price $2.99
Author Amazing Noises
Type Effect
Effect type Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.48276 (29), current: 4.48276 (29)
Released 12/17/2014
Updated 01/28/2026

Moebius Lab is a multimorphic sound processor which contains a synth, a varispeed stereo sample player, effects and LFOs that can modulate each parameter.

Price $9.99
Author Amazing Noises
Type Instrument, Effect
Instrument type Synth
Instrument sounds Keyboards
Effect type Equalizer, Filter, Reverb, Delay, Echo, Compressor, Limiter, Gate, Distortion, Drive etc., Chorus, Flanger, Phaser etc., Modulation effects, Pitch effects
Supports Inter-App Audio (IAA), Audiobus
Rating total: 4.9 (50), current: 4.9 (50)
Released 06/29/2016
Updated 01/28/2026

The Dub Filter is a dual low-pass/high-pass 24/48 dB filter, with resonance and the exclusive Overlap parameter.

Price Free
Author Amazing Noises
Type Instrument, Effect
Instrument sounds Other
Effect type Equalizer, Filter
Supports Inter-App Audio (IAA), Audiobus
Rating total: 4.66197 (71), current: 4.66197 (71)
Released 05/29/2015
Updated 01/28/2026

Dedalus Delay is a real time audio mangler. A network of delay lines is continually granulated and modulated, producing a labyrinth of echoes, which are further processed by filters, dynamic processors and saturation modules.

Price $5.99
Author Amazing Noises
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus
Rating total: 4.625 (40), current: 4.625 (40)
Released 02/14/2015
Updated 01/28/2026

GliderVerb is a “Reverberator with Glissandos” simulating a room gradually changing its shape.

Price Free
Author Amazing Noises
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus
Rating total: 4.55294 (85), current: 4.55294 (85)
Released 07/25/2014
Updated 01/28/2026

The Amazing Noises Reverb is a Feedback Delay Network (FDN) Reverb Effect, which can create nice reverberated ambiences, from small rooms to huge buildings.

Price $4.99
Author Amazing Noises
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus
Rating total: 4.42856 (14), current: 4.42856 (14)
Released 12/30/2014
Updated 01/28/2026

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: 4.21519 (158), current: 4.21519 (158)
Released 01/07/2017
Updated 01/26/2026

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: 4.77419 (31), current: 4.77419 (31)
Released 09/09/2020
Updated 09/07/2025

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

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

Want to sing as a  popstar on AutoPitch, live-pause your voice, talk with a deep robot voice all at once? Voice Synth does all this and more, all based on your own unique voice.

Price $8.99
Author Qneo
Type Effect
Effect type Vocoder, Other
Supports Inter-App Audio (IAA)
Rating total: 4.12923 (325), current: 4.12923 (325)
Released 01/04/2012
Updated 01/08/2026

Want to sing as a popstar on AutoPitch, live-pause your voice, talk with a deep robot voice all at once? Voice Synth does all this and more, all based on your own unique voice.

Price Free
Author Qneo
Type Effect
Effect type Vocoder, Other
Supports Inter-App Audio (IAA)
Rating total: 4.21383 (2979), current: 4.21383 (2979)
Released 12/14/2013
Updated 01/08/2026

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

The JAF Collection is an exciting set of digital modeled classic analog synthesizer filters (VCFs) for iOS.

Price $19.99
Author Jens Guell
Type Effect
Effect type Equalizer, Filter
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.9 (20), current: 4.9 (20)
Released 07/24/2019
Updated 02/20/2023

Echo Pitch is a pitch-shifting multi-delay for iPhone.

Price $4.99
Author Avi Bortnick
Type Effect
Effect type Reverb, Delay, Echo, Pitch effects
Supports Inter-App Audio (IAA), Audiobus
Rating total: 4.93333 (15), current: 4.93333 (15)
Released 12/06/2016
Updated 12/27/2025

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: 4.70909 (55), current: 4.70909 (55)
Released 10/02/2021
Updated 06/17/2024

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
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Did you know?

Inter-App Audio (IAA) is a technology by Apple Inc, allows audio connection feature between apps. To use this feature, you need to have at least two IAA compatible applications installed on your iOS (iPhone, iPad etc.) device, first acts as a host and receives audio stream, and second acts as a node (or instrument) and publishes an output. Also, IAA node can transform audio or MIDI signal sent by host app, and return it in a modified form.