Inter-App (IAA) Applications (522)

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

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: 4.69444 (36), current: 4.69444 (36)
Released 08/10/2021
Updated 07/02/2025

iMPC Pro 2 for iPhone fuses innovative song creation with the MPC workflow.

Price $12.99 $6.99
Author Akai Professional
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion, Other
Supports Inter-App Audio (IAA), Audio Unit (AU), Ableton Link
Rating total: 4.65634 (1775), current: 4.65634 (1775)
Released 12/10/2018
Updated 05/16/2025

Combine 3 oscillators and a noise envelope to produce bright 80s-style synths, deep rich bass, punchy kicks and snares, a variety of screaming leads, and even breathy percussion.

Price $9.99 $5.99
Author Sequence Mediaworks LLC
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.4 (15), current: 4.4 (15)
Released 08/04/2019
Updated 07/01/2025

iMPC Pro fuses innovative song creation with the iconic MPC workflow.

Price $24.99 $12.99
Author Akai Professional
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion, Other
Supports Inter-App Audio (IAA), Audio Unit (AU), Ableton Link
Rating total: 4.43713 (1018), current: 4.43713 (1018)
Released 12/14/2017
Updated 05/16/2025

apeFilter is a sophisticated Equaliser, the DSP is based on the Biquad/Cascade filters, very fast!

Price $5.99 $2.99
Author apeSoft
Type Effect
Effect type Equalizer, Filter
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.84375 (32), current: 4.84375 (32)
Released 09/30/2014
Updated 07/01/2025

apeMatrix is a unique AU/IAA routing tool that gives you total control over what you want to do and how you want to do it.

Price $11.99 $4.99
Author apeSoft
Type Tool
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.64634 (82), current: 4.64634 (82)
Released 07/04/2018
Updated 07/01/2025

AudioKit Synth One is a completely free & open-source professional iOS Synthesizer. 

Price Free
Author AudioKit Pro
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.9096 (26769), current: 4.9096 (26769)
Released 07/07/2018
Updated 07/01/2025

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

Price $4.99 $2.99
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

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

Price $4.99 $2.99
Author Caelum Audio
Type Effect
Effect type Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.85714 (7), current: 4.85714 (7)
Released 02/12/2021
Updated 11/04/2022

Luminair 3 is a professional-grade lighting control app, exclusively for iOS, that gives lighting designers, filmmakers and TV professionals, musicians, artists and other enthusiasts advanced control over DMX-enabled lights, as well as the next generation of "Smart" lights like Philips Hue.

Price Free
Author Synthe FX, LLC
Type Tool
Supports Inter-App Audio (IAA)
Rating total: 4.58802 (1102), current: 4.58802 (1102)
Released 06/16/2015
Updated 07/01/2025

Englitina is an authentic-sounding English Treble Concertina for the iPad.

Price $4.99
Author Michael Eskin
Type Instrument
Instrument type Sampler
Instrument sounds Keyboards, Ethnic
Supports Inter-App Audio (IAA), Audiobus
Rating total: 5 (2), current: 5 (2)
Released 08/21/2010
Updated 07/01/2025

VOLT is a virtual analog synthesizer designed to create classic synth sounds while emphasising expressive play.

Price $19.99 $9.99
Author Kai Aras
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.61257 (191), current: 4.61257 (191)
Released 03/29/2018
Updated 10/27/2020

Agonizer is a monophonic synthesizer designed in collaboration with YouTuber and synth bass expert Jakob Haq of haQ attaQ

Price $19.99 $9.99
Author Kai Aras
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.84422 (199), current: 4.84422 (199)
Released 11/11/2020
Updated 05/14/2024

ShockWave is a monophonic Synthesizer designed to bring modular style workflow to the world of iOS & AUv3 plugins.

Price $19.99 $9.99
Author Kai Aras
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.55738 (183), current: 4.55738 (183)
Released 12/04/2019
Updated 02/28/2025

RF-1 is an Algorithmic Reverb (AU, AB, IAA, Standalone).

Price $5.99 $2.99
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

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: 4.21711 (152), current: 4.21711 (152)
Released 01/07/2017
Updated 06/30/2025

KB-1 is a an expressive virtual keyboard designed for a multitude of scenarios.

Price $12.99 $7.99
Author Kai Aras
Type Controller
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.83399 (253), current: 4.83399 (253)
Released 11/20/2018
Updated 08/15/2024

FD-1 is a Semi-Modular Effect Plugin including dedicated Filter, Delay and Modulation sections.

Price $9.99 $4.99
Author Kai Aras
Type Effect
Effect type Equalizer, Filter, Reverb, Delay, Echo, Modulation effects
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.74193 (31), current: 4.74193 (31)
Released 11/07/2019
Updated 09/24/2020

RE-1 is a full featured virtual Tape Machine capable of delivering authentic tape based echo and chorus effects but it doesn't stop there. With it's interactive tape player, sample, loop and overdub features it's possible to use it like a virtual tape recorder, sample player, looper or simply as a master effect.

Price $9.99 $4.99
Author Kai Aras
Type Effect
Effect type Reverb, Delay, Echo, Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.70078 (127), current: 4.70078 (127)
Released 08/23/2018
Updated 04/29/2024

ToneBoosters Morphit is an AUv3 plugin for headphones correction and simulation and removes any unwanted coloration from your headphones!

Price $8.99
Author ToneBoosters
Type Effect
Effect type Equalizer, Filter, Other
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.63333 (30), current: 4.63333 (30)
Released 11/16/2019
Updated 06/29/2025
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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.