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

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Eventide Crystals Harmonizer® combines twin reverse pitch shifters with reverse delays and reverb. This iconic H3000 effect can be used to create out-of-this-world climbing and cascading pitched delays or to create unique sounding reverbs. It features two reverse granular delays that can be manipulated by length and pitch.

Price $14.99
Author Eventide
Type Effect
Effect type Equalizer, Filter, Reverb, Delay, Echo, Pitch effects
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.59999 (20), current: 4.59999 (20)
Released 06/08/2020
Updated 03/06/2024

RoughRider3 is a dynamic compressor.

Price Free
Author Audio Damage, Inc.
Type Effect
Effect type Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.59999 (75), current: 4.59999 (75)
Released 01/27/2020
Updated 02/13/2020

GyroVibe evokes the sound and textures of a classic vibrato chorus. It also contains multi-stage driven filters that will swirl and swoosh your instrument all over the stereo field. GyroVibe is perfect for adding depth and color to keyboards.

Price Free
Author Neon Silicon
Type Effect
Effect type Equalizer, Filter, Modulation effects
Supports Audio Unit (AU)
Rating total: 4.59999 (30), current: 4.59999 (30)
Released 05/02/2019
Updated 04/13/2021

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

K7D is a vintage tape delay effect plugin for iOS.

Price $7.99
Author Imaginando Lda
Type Effect
Effect type Reverb, Delay, Echo
Supports Audiobus, Audio Unit (AU)
Rating total: 4.58974 (78), current: 4.58974 (78)
Released 05/06/2019
Updated 05/25/2024

ADverb2 is an accurate model of a vintage digital plate reverb rack unit from the 80s, with a few modern tricks up its sleeve.

Price $4.99
Author Audio Damage, Inc.
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.58824 (17), current: 4.58824 (17)
Released 04/30/2018

apeDelay - spectral Delay implements up to 2048 delay lines with feedback or up to 2048 Brick-wall filters.

Price $6.99
Author apeSoft
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.58824 (17), current: 4.58824 (17)
Released 06/20/2015
Updated 07/22/2025

LRC5 is a five-band EQ. It includes low shelf, high shelf, and three parametric peak/cut filters.

Price Free
Author Neon Silicon
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.58696 (46), current: 4.58696 (46)
Released 02/07/2019
Updated 05/27/2022

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

Koala FX is the creative effects unit. It offers 16 one-touch effects that you can play intuitively like an instrument, allowing you to morph and twist your track.

Price $3.99
Author Mazbox Limited
Type Effect
Effect type All-in-one, Other
Supports Audio Unit (AU)
Rating total: 4.57534 (73), current: 4.57534 (73)
Released 08/03/2020
Updated 05/31/2023

Steel Guitar PRO is a guitar processor that combines cutting-edge realtime audio generation with control interface. It provides guitar models, built-in amps & FX processing, MIDI control, AUv3, and good customizability.

Price $9.99
Author Yonac Inc.
Type Effect
Effect type Guitar effects
Supports Audio Unit (AU)
Rating total: 4.57143 (63), current: 4.57143 (63)
Released 06/23/2022
Updated 07/08/2022

Analog Rack Flanger a Fx plugin which let you apply beautiful Flanger Fx to each track with three simple knobs.

Price $3.99
Author Nembrini Audio
Type Effect
Effect type Chorus, Flanger, Phaser etc.
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.57143 (7), current: 4.57143 (7)
Released 02/08/2020
Updated 09/27/2021

Drum surgeon is a dynamics / transient processor specifically designed for fine tuning your drums.

Price $9.99
Author 4Pockets.com
Type Effect
Effect type Other
Supports Audio Unit (AU)
Rating total: 4.55556 (9), current: 4.55556 (9)
Released 11/20/2020
Updated 09/03/2025

MangledVerb is a unique effect combining a rich reverb with devastating distortion.

Price $14.99
Author Eventide
Type Effect
Effect type Reverb, Delay, Echo, Distortion, Drive etc.
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.55556 (18), current: 4.55556 (18)
Released 11/27/2019
Updated 03/06/2024

FoldR is a Wave Folding distortion effect app that adds harmonics to the original signal by folding the waveform back on itself when it exceeds a clipping threshold.

Price $4.99
Author Living Memory Software
Type Effect
Effect type Distortion, Drive etc., Other
Supports Audio Unit (AU)
Rating total: 4.55556 (9), current: 4.55556 (9)
Released 11/10/2017
Updated 08/27/2025

Multiband splits an audio signal into separate channels: one for each of up to four frequency bands.

Price Free
Author Blue Mangoo Consulting Company Limited
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.54839 (31), current: 4.54839 (31)
Released 01/20/2021
Updated 01/20/2021

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

Does your bass sound dull and lifeless? Red Rock Sound Bass Enhancer will be your choice to correct this deficiency. Bass Enhancer designed for saturation harmonics of low-frequency, it creates the effect of lower, deeper frequencies. This effect can not be created with simple equalization.

Price Free
Author RRS, OOO
Type Effect
Effect type Bass effects
Supports Audio Unit (AU)
Rating total: 4.54054 (37), current: 4.54054 (37)
Released 04/18/2020
Updated 12/28/2025

DAW Cassette is an Audio Unit effect that emulates the sound of a classical tape deck.

Price $13.99
Author Klevgränd produkter AB
Type Effect
Effect type Other
Supports Audiobus, Audio Unit (AU)
Rating total: 4.53846 (26), current: 4.53846 (26)
Released 04/27/2018
Updated 06/02/2021

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: 4.50039 (2596), current: 4.50039 (2596)
Released 07/14/2016
Updated 04/16/2026