iOS Musician Apps (67) Supported Technologies is Audio Unit (AU), Effect Type is Reverb, Delay, Echo

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Play or save the files with added reverb. Use play through mode or Audiobus for realtime reverberation.

Price Free
Author Markus Sigg
Type Effect
Effect type Reverb, Delay, Echo
Supports Audiobus, Audio Unit (AU)
Rating total: 4.71875 (32), current: 4.71875 (32)
Released 04/26/2013
Updated 03/24/2026

Studio quality reverb for AUv3 / Audiobus / Inter-app audio and songs from your iTunes music library.

Price $1.99
Author Harry Gohs
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 3.86364 (22), current: 3.86364 (22)
Released 08/05/2013
Updated 06/19/2025

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

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: 3.36957 (46), current: 3.36957 (46)
Released 11/03/2015
Updated 04/30/2024

Frekvens is a frequency shifter and delay effect.

Price $2.99
Author Erik Sigth
Type Effect
Effect type Reverb, Delay, Echo, Pitch effects, Stereo, Pan effects
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.8 (20), current: 4.8 (20)
Released 02/20/2016
Updated 11/25/2025

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: 3.86667 (15), current: 3.86667 (15)
Released 03/22/2016
Updated 04/14/2022

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

Price $9.99 $4.99
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

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

Resonator Audio Unit is an audio effect that creates natural sounding resonances in an acoustic body.

Price $2.99
Author Aleksandar Mlazev
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 5 (3), current: 5 (3)
Released 04/13/2017
Updated 07/13/2023

Alien Box is a new kind of audio effect that you have never heard before.

Price $2.99
Author Aleksandar Mlazev
Type Effect
Effect type Reverb, Delay, Echo, Compressor, Limiter, Gate, Modulation effects, Other
Supports Audio Unit (AU)
Rating total: 1.33333 (3), current: 1.33333 (3)
Released 05/16/2017
Updated 01/08/2025

Alien Box is LFO operated modulation effect.

Price $2.99
Author Aleksandar Mlazev
Type Effect
Effect type Reverb, Delay, Echo, Compressor, Limiter, Gate, Modulation effects, Other
Supports Audio Unit (AU)
Released 05/31/2017
Updated 08/10/2023

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

Remake is a multi-band effect, includes gain, reverb.

Price $1.99
Author Aleksandar Mlazev
Type Effect
Effect type Equalizer, Filter, Reverb, Delay, Echo
Supports Audio Unit (AU)
Released 12/07/2017
Updated 05/24/2024

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

Echo effect Audio Unit V3 inspired by the mayan pyramids acoustic echo. I come up with a complex phase modulated frequency of the echo so you can change it’s frequency signature. It is kind of changing the material of the reflective surface and I called it “Stone F”.

Price $2.99
Author Aleksandar Mlazev
Type Effect
Effect type Reverb, Delay, Echo
Supports Audio Unit (AU)
Rating total: 2.75 (4), current: 2.75 (4)
Released 03/02/2018
Updated 07/22/2025

Kosmonaut is Multitap Delay with a twist. In addition to adding echoes to your audio, it packs a bunch of extra tools to put your music in space.

Price $3.99
Author Bram Bos
Type Effect
Effect type Reverb, Delay, Echo, Stereo, Pan effects, Other
Supports Audio Unit (AU)
Rating total: 4.80882 (68), current: 4.80882 (68)
Released 03/06/2018
Updated 12/23/2020

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

Whole guitar sound with innovative distortion effect, speaker simulation and reverb.

Price $4.99
Author Aleksandar Mlazev
Type Effect
Effect type Reverb, Delay, Echo, Distortion, Drive etc.
Supports Audio Unit (AU)
Released 06/07/2018
Updated 12/23/2024

DLYM is a ‘Delay Modulator’ plugin which produces flanger and chorus style effects using Imaginando’s powerful processing technology.

Price $7.99
Author Imaginando Lda
Type Effect
Effect type Reverb, Delay, Echo, Chorus, Flanger, Phaser etc.
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.44036 (109), current: 4.44036 (109)
Released 06/20/2018
Updated 11/12/2024

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: 4.68939 (132), current: 4.68939 (132)
Released 08/23/2018
Updated 04/29/2024
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