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

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soda is a DJ application. It's customisable Interface let's you focus only on the features that are important to you.

Price $9.99
Author AppBC
Type Host, Effect
Effect type Equalizer, Filter, Reverb, Delay, Echo, Chorus, Flanger, Phaser etc.
Supports Audio Unit (AU), Ableton Link
Rating total: 2.76923 (13), current: 2.76923 (13)
Released 12/04/2017
Updated 07/21/2021

Traditional EQs influence the spectrum of the whole stereo field simultaneously. DirectionalEQ takes this concept one big step further: now you can equalize all directions in the stereo field independently.

Price $9.99
Author Christian Siedschlag
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 3.64286 (14), current: 3.64286 (14)
Released 10/27/2017
Updated 01/02/2026

A professional compressor plugin in the audio unit format.

Price $9.99
Author Christian Siedschlag
Type Effect
Effect type Compressor, Limiter, Gate
Supports Audio Unit (AU)
Rating total: 3.8 (15), current: 3.8 (15)
Released 05/28/2017
Updated 12/15/2025

The 6144 is an Audio Unit equalizer which aims to recreate the legendary sound of the Neve hardware EQs.

Price $9.99
Author Christian Siedschlag
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.27273 (33), current: 4.27273 (33)
Released 07/18/2016
Updated 12/15/2025

Envelope is a high class reverb audio unit for use as a standalone app or (preferably) in AUv3 hosts.

Price $9.99
Author Christian Siedschlag
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 3.94737 (19), current: 3.94737 (19)
Released 06/15/2016
Updated 01/02/2026

This audio effect is an advanced de-esser with an intuitive user interface.

Price $9.99
Author Klevgränd produkter AB
Type Effect
Effect type Equalizer, Filter
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 3.4375 (16), current: 3.4375 (16)
Released 10/11/2015
Updated 10/12/2023

iDensity is a new real-time software designed for asynchronous sound file granulation, a genuine granular playground able to generate a wide range of effects.

Price $9.99
Author apeSoft
Type Effect
Effect type All-in-one, Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.91667 (48), current: 4.91667 (48)
Released 09/16/2011
Updated 07/25/2025

Based on creative techniques developed by studio engineers and producers in the early 1980s, Shimmer Delay Ambient Machine combines reverb, pitch shifting, and feedback to create out-of- this-world soundscapes and spaces.

Price $8.99
Author Nembrini Audio
Type Effect
Effect type Reverb, Delay, Echo, Pitch effects
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 5 (4), current: 5 (4)
Released 04/17/2021
Updated 11/29/2024

ToneBoosters Compressor is an AUv3 plugin for mastering-grade compression and dynamics processing.

Price $8.99
Author ToneBoosters
Type Effect
Effect type Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.79167 (24), current: 4.79167 (24)
Released 06/23/2020
Updated 10/05/2025

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: 4.64516 (31), current: 4.64516 (31)
Released 11/16/2019
Updated 10/28/2025

Knorr is a plugin that adds intensity and edge to a monophonic low frequency audio source (like a bass). The algorithm adds overtones to an existing sound in a way that isn’t possible with ordinary distortion or filtering.

Price $8.99
Author Klevgränd produkter AB
Type Effect
Effect type Equalizer, Filter, Other
Supports Audio Unit (AU)
Rating total: 4.33333 (6), current: 4.33333 (6)
Released 10/14/2019
Updated 10/15/2019

ToneBoosters Barricade is a peak limiter and compressor.

Price $8.99
Author ToneBoosters
Type Effect
Effect type Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.7931 (29), current: 4.7931 (29)
Released 09/17/2019
Updated 09/28/2025

Visual Compressor is a 4 band compressor/expander which has the ability to analyse audio in real time giving an accurate and reliable spectrum representation of your signal as well as visual feedback of compression or expansion levels.  It's uses range from final mastering of songs to dynamic manipulation and EQing of drum tracks.

Price $8.99
Author 4Pockets.com
Type Effect
Effect type Compressor, Limiter, Gate
Supports Audio Unit (AU)
Rating total: 5 (2), current: 5 (2)
Released 08/13/2019
Updated 09/03/2025

ToneBoosters Reverb is a studio-quality reverberation plug-in.

Price $8.99
Author ToneBoosters
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.77778 (54), current: 4.77778 (54)
Released 08/13/2019
Updated 09/30/2025

Visual EQ Console is a multi-band EQ console with the ability to analyse audio in real time giving a spectrum representation of the frequency response. 

Price $8.99
Author 4Pockets.com
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.14286 (21), current: 4.14286 (21)
Released 06/23/2019
Updated 09/03/2025

Harmonic Exciter is an AUv3 Compatible plugin for your favourite DAW such as Cubasis, Auria, AUM, Meteor, BM3 or GarageBand etc.

Price $8.99
Author 4Pockets.com
Type Effect
Effect type Other
Supports Audio Unit (AU)
Rating total: 2.83333 (6), current: 2.83333 (6)
Released 04/09/2019
Updated 09/04/2025

The WoodLofier is both a standalone app and AUv3 plugin which combines 4 different sections to make your sound more lofi or to add some creative twist  : filtering (and Sample Rate reduction), a Tape wobble unit, Noise addition and Crushing (clipping, bit reduction and saturation).

Price $8.99
Author Woodman's Immaculate Maple Syrup Studio
Type Effect
Effect type Distortion, Drive etc., Other
Supports Audio Unit (AU)
Rating total: 5 (6), current: 5 (6)
Released 02/14/2019
Updated 10/12/2024

Discord4 is the latest version of our most popular and long-lived product, our Discord stereo pitch shifter. Originally modeled from the H910, Discord has long since become its own effect and a studio standby, and this version includes major additions to further stretch its capabilities.

Price $8.99
Author Audio Damage, Inc.
Type Effect
Effect type Reverb, Delay, Echo, Pitch effects
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.68966 (29), current: 4.68966 (29)
Released 02/24/2018
Updated 10/09/2019

Beef is a multi-effect audio plugin with a sole purpose, to make your tracks sound BEEFY. Beef was originally built to focus on creating the fattest basses and drums as possible.

Price $7.99
Author Caelum Audio
Type Effect
Effect type Bass effects
Supports Audio Unit (AU)
Rating total: 4.59091 (22), current: 4.59091 (22)
Released 04/30/2021
Updated 09/13/2022

BLEASS Motion FX contains 11 different effects which you can modulate precisely thanks to an intuitive and comprehensive sequencer.

Price $7.99
Author BLEASS
Type Effect
Effect type Equalizer, Filter, Reverb, Delay, Echo, Modulation effects, Pitch effects, Other
Supports Audio Unit (AU)
Rating total: 4.83333 (12), current: 4.83333 (12)
Released 03/21/2021
Updated 08/15/2025
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