iOS Musician Apps (156) Supported Technologies is Inter-App Audio (IAA), Type is Effect

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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: 4.21142 (3065), current: 4.21142 (3065)
Released 12/14/2013
Updated 01/08/2026

Featuring 65 classic amps and effects, Line 6 Mobile POD® gives you everything you need for mobile guitar processing.

Price Free
Author Line 6
Type Effect
Effect type Guitar effects, Bass effects
Supports Inter-App Audio (IAA), Audiobus
Rating total: 2.67857 (112), current: 2.67857 (112)
Released 11/12/2011
Updated 01/16/2018

Amp ONE transforms your iPad into a high quality guitar tube preamp / guitar cabinet with a set of the most important effects for making music in real-time.

Price Free
Author Vladimir Titov
Type Effect
Effect type Guitar effects
Supports Inter-App Audio (IAA), Audiobus
Rating total: 4.32759 (58), current: 4.32759 (58)
Released 11/27/2014
Updated 02/13/2015

Real time vocal processor + recording app.

Price Free
Author IK Multimedia US, LLC
Type Effect
Effect type Equalizer, Filter, Reverb, Delay, Echo, Compressor, Limiter, Gate, Chorus, Flanger, Phaser etc., Pitch effects, Vocal effects, Other
Supports Inter-App Audio (IAA), Audiobus
Released 03/10/2011
Updated 09/28/2026

BIAS is a professional amp designer, modeler and processor.

Price Free
Author Positive Grid Inc
Type Effect
Effect type Distortion, Drive etc., Guitar effects
Supports Inter-App Audio (IAA), Audiobus
Rating total: 4.43778 (651), current: 4.43778 (651)
Released 02/20/2014
Updated 06/21/2023

Pro quality studio reverb effect.

Price Free
Author Thomas Fiedler
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus
Rating total: 4.5 (4), current: 4.5 (4)
Released 07/16/2013
Updated 05/23/2018

With a future-dripping user interface, incredible filter types with the famous vowel mode. With distortions that cover your tracks with gas and put them on fire. Modulations that cause more trouble than your modular dark room. And finally that warm and juicy sound.

Price Free
Author Sugar Bytes GmbH
Type Effect
Effect type Equalizer, Filter, Distortion, Drive etc., Modulation effects
Supports Inter-App Audio (IAA), Audiobus, Ableton Link
Rating total: 4.59999 (30), current: 4.59999 (30)
Released 09/18/2013
Updated 10/27/2026

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 09/21/2026

Mic Room FREE is a microphone modeling app for your iPhone or iPad.

Price Free
Author IK Multimedia US, LLC
Type Effect
Effect type Vocal effects, Other
Supports Inter-App Audio (IAA), Audiobus
Released 06/14/2015
Updated 10/13/2026

BIAS is an Amp Designer, Modeler and Processor.

Price Free
Author Positive Grid Inc
Type Effect
Effect type Compressor, Limiter, Gate, Distortion, Drive etc., Guitar effects, Bass effects, Other
Supports Inter-App Audio (IAA), Audiobus
Rating total: 4.49601 (752), current: 4.49601 (752)
Released 11/13/2013
Updated 06/21/2023

MicSwap is a Microphone Emulator and Recorder app.

Price Free
Author Future Moments
Type Effect
Effect type Vocal effects, Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.50051 (6837), current: 4.50051 (6837)
Released 12/07/2014
Updated 11/06/2026

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: 4.50462 (2808), current: 4.50462 (2808)
Released 07/14/2016
Updated 11/12/2026

ChannelStrip is, as its name implies, a channel strip app and AUv3 plugin. With a gate, equalizer, and compressor, ChannelStrip can provide a solid and easy-to-use channel control for your iOS mixing needs.

Price $3.99 $0.99
Author Audio Damage, Inc.
Type Effect
Effect type Equalizer, Filter, Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 5 (4), current: 5 (4)
Released 05/01/2019
Updated 09/27/2024

Ratshack Reverb is a detailed model of that classic of classics, the Realistic Electronic Reverb. Now, you can have the sound of everyone's first analog delay unit, without ever having to change batteries!

Price $0.99
Author Audio Damage, Inc.
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.73913 (23), current: 4.73913 (23)
Released 10/20/2018

VoxSyn turns your voice into the flexible vocal sound generator ever.

Price $0.99
Author Harry Gohs
Type Effect
Effect type Vocal effects
Supports Inter-App Audio (IAA), Audiobus
Rating total: 3.11111 (18), current: 3.11111 (18)
Released 06/24/2016
Updated 11/16/2016

To create Panstation, we started with a loose model of the venerable Drawmer M500's panning engine, then added the counting features from the Audio & Design PanScan (probably the most famous vintage autopanner, and the "secret weapon" of many well-known producers).

Price $3.99 $1.99
Author Audio Damage, Inc.
Type Effect
Effect type Stereo, Pan effects
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.45455 (11), current: 4.45455 (11)
Released 04/08/2020
Updated 04/08/2020

Instantly following even subtle modulations of pitch and spectral changes of your voice VoxSyn Pro creates signature vocal sounds far beyond traditional vocoding.

Price $1.99
Author Harry Gohs
Type Effect
Effect type Vocoder
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 3.42857 (14), current: 3.42857 (14)
Released 12/10/2019
Updated 10/22/2020

PhaseThree is a detailed model of the MuTron Bi-Phase, with all the lovely sound of that unit (along with its foibles and quirks.)

Price $4.99 $1.99
Author Audio Damage, Inc.
Type Effect
Effect type Chorus, Flanger, Phaser etc.
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.64286 (14), current: 4.64286 (14)
Released 11/15/2018

RX950 Classic AD/DA Converter is a Classic AD/DA Converter emulator.

Price $1.99
Author Inphonik
Type Effect
Effect type Other
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.63999 (50), current: 4.63999 (50)
Released 07/28/2018
Updated 04/02/2019

Back in the “old days”, producers and engineers created delay and echo effects using tape machines. Tap Delay combines the warm sound of vintage tape echo machines with a modern, step sequencer-like tapped delay engine which continues the tradition of the tape echo machines into the 21st century.

Price $1.99
Author Harry Gohs
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus
Rating total: 4.15385 (13), current: 4.15385 (13)
Released 07/28/2015
Updated 06/13/2022
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