Audio Unit (AU) Reverb, Delay, Echo Apps (79)

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Audio Unit (AU) technology enabled Reverb, Delay, Echo effect app list for iOS

TfxEcho is an echo effect AudioUnit Extension plugin. It uses delay lines which are inspired by BBD (bucket brigade device). BBD is used in various analog delay unit and is known for its warm and dark sound.

Price $1.99
Author Ryo Togawa
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 5 (11), current: 5 (11)
Released 07/16/2020
Updated 09/18/2023

TfxReverb is designed for simple and easy operation. When auto size mode is enabled, number of parameters can be controlled by a single dial to adjust size of the reverb sound, which can be synced to tempo.

Price $1.99
Author Ryo Togawa
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 4.5 (8), current: 4.5 (8)
Released 08/31/2020
Updated 09/18/2023

This shimmer effect is a combination of effects that creates an etherial wall of sound. The effect combines a digital delay and pitch shifter to create multiple harmonies before entering a rich long reverb with controllable filtering. The resulting effect is a monsterously huge sound adding a spacious atmospheric quality to any lead instrument or vocal.

Price $7.99
Author 4Pockets.com
Type Effect
Effect type Reverb, Delay, Echo, Pitch effects
Supports Audio Unit (AU)
Rating total: 4.2 (30), current: 4.2 (30)
Released 02/15/2019
Updated 10/24/2020

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 $6.99
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: 4.85185 (27), current: 4.85185 (27)
Released 09/09/2020
Updated 06/22/2023

Kajita combines two-stage multi-tap stereo delay with reverb, allowing you to create complex spatial effects.

Price $6.99
Author iceWorks, Inc.
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 5 (16), current: 5 (16)
Released 08/29/2021
Updated 06/22/2023

BLEASS Shimmer is an AUv3 compatible Shimmer Reverb Effect that brings harmonic tails to any sound or instrument with very low CPU usage.

Price $7.99
Author BLEASS
Type Effect
Effect type Reverb, Delay, Echo, Pitch effects
Supports Audiobus, Audio Unit (AU)
Rating total: 4.95652 (23), current: 4.95652 (23)
Released 06/17/2020
Updated 06/17/2020

BLEASS delay transforms your sounds into cinematic and experimental sonic experiences! It is constantly creating flux in the audio signal making your music even more lively.
BLEASS delay is also ideal for making track build-ups and transitions.

Price $4.99
Author BLEASS
Type Effect
Effect type Reverb, Delay, Echo
Supports Audiobus, Audio Unit (AU)
Rating total: 4.75676 (37), current: 4.75676 (37)
Released 02/21/2019
Updated 04/18/2023

Zero Reverb is an Audio Unit Extension (AUv3) that works as a plug-in inside host apps.

Price Free
Author Blamsoft, Inc.
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 3.125 (40), current: 3.125 (40)
Released 11/03/2015
Updated 01/08/2024

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
Author Kai Aras
Type Effect
Effect type Reverb, Delay, Echo, Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.7459 (122), current: 4.7459 (122)
Released 08/23/2018
Updated 01/05/2024

Stellr is a pitch-shifter/delay/reverb sound processor aimed to recreate the classic shimmer effect.

Price $4.99
Author BACKPULLVER SOFTWARE LTD OOD
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 3.44444 (9), current: 3.44444 (9)
Released 04/26/2019
Updated 08/14/2022

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: 3.78571 (14), current: 3.78571 (14)
Released 03/22/2016
Updated 04/14/2022

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

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

Price $9.99
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: 4.72414 (29), current: 4.72414 (29)
Released 11/07/2019
Updated 09/24/2020

FabFilter Pro-R is an algorithmic reverb plug-in with natural sound and intuitive controls.

Price $39.99
Author FabFilter
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 4.81818 (22), current: 4.81818 (22)
Released 06/21/2019
Updated 12/20/2023

FabFilter Timeless 3 is a versatile, vintage-sounding tape delay, which will fully satisfy your everyday delay needs.

Price $24.99
Author FabFilter
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 5 (24), current: 5 (24)
Released 05/27/2021
Updated 12/19/2023

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: 4.71186 (59), current: 4.71186 (59)
Released 05/06/2019
Updated 01/24/2023

IMPULSation is an impulse response/convolution reverb that allows you to load in your own impulses for an an unlimited amount of neverb and amp possibilities.

Price $9.99
Author MIDIculous LLC
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 3.78571 (14), current: 3.78571 (14)
Released 12/19/2019
Updated 07/12/2023

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 (3), current: 5 (3)
Released 04/17/2021
Updated 09/27/2021

Modeled on the Roland SDE-3000 rack delay unit, the new DELAY3000 Vintage Modern Repeater plugin adds new features and an easy to use user interface that gives you a complete arsenal of delay effects at your disposal!

Price $9.99
Author Nembrini Audio
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 5 (15), current: 5 (15)
Released 04/01/2020
Updated 09/27/2021

Analog Rack Reverb two plugins in one, Stereo Hall and Stereo Room reverb algorithms ideal for every source!

Price $3.99
Author Nembrini Audio
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.66667 (9), current: 4.66667 (9)
Released 02/07/2020
Updated 09/27/2021
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Did you know?

Audio Units (AU) is an audio plug-in technology built in Apple's macOS and iOS operating systems. Initially developed for desktop operating systems along with VST (Virtual Studio Technology by Steinberg GmbH), it available now for iOS too. AU apps (plug-ins) can modify sound pitch, sample rate and stream over network, produce signal.