Inter-App Audio (IAA) enabled Reverb, Delay, Echo effect app list for iOS
DLYM is a ‘Delay Modulator’ plugin which produces flanger and chorus style effects using Imaginando’s powerful processing technology.
| Price | $3.99 $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: (109), current: (109) |
| Released | 06/20/2018 |
| Updated | 11/12/2024 |
Echo Pitch is a pitch-shifting multi-delay for iPhone.
| Price | $4.99 |
|---|---|
| Author | Avi Bortnick |
| Type | Effect |
| Effect type | Reverb, Delay, Echo, Pitch effects |
| Supports | Inter-App Audio (IAA), Audiobus |
| Rating | total: (16), current: (16) |
| Released | 12/06/2016 |
| Updated | 05/07/2026 |
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: (9), current: (9) |
| Released | 04/26/2019 |
| Updated | 04/22/2026 |
GliderVerb is a “Reverberator with Glissandos” simulating a room gradually changing its shape.
| Price | Free |
|---|---|
| Author | Amazing Noises |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Inter-App Audio (IAA), Audiobus |
| Rating | total: (85), current: (85) |
| Released | 07/25/2014 |
| Updated | 04/10/2026 |
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: (29), current: (29) |
| Released | 02/24/2018 |
| Updated | 10/09/2019 |
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: (17), current: (17) |
| Released | 04/30/2018 |
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: (23), current: (23) |
| Released | 10/20/2018 |
This is a direct 1:1 port of Audio Damage's Eos 2 desktop plug-in, identical in every way to the Eos you know and love.
| Price | $6.99 |
|---|---|
| Author | Audio Damage, Inc. |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Inter-App Audio (IAA), Audiobus |
| Rating | total: (17), current: (17) |
| Released | 06/27/2017 |
| Updated | 03/27/2026 |
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: (15), current: (15) |
| Released | 03/22/2016 |
| Updated | 04/14/2022 |
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: (132), current: (132) |
| Released | 08/23/2018 |
| Updated | 04/29/2024 |
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: (32), current: (32) |
| Released | 11/07/2019 |
| Updated | 09/24/2020 |
Moebius Lab is a multimorphic sound processor which contains a synth, a varispeed stereo sample player, effects and LFOs that can modulate each parameter.
| Price | $9.99 |
|---|---|
| Author | Amazing Noises |
| Type | Instrument, Effect |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Effect type | Equalizer, Filter, Reverb, Delay, Echo, Compressor, Limiter, Gate, Distortion, Drive etc., Chorus, Flanger, Phaser etc., Modulation effects, Pitch effects |
| Supports | Inter-App Audio (IAA), Audiobus |
| Rating | total: (50), current: (50) |
| Released | 06/29/2016 |
| Updated | 01/28/2026 |
Dedalus Delay is a real time audio mangler. A network of delay lines is continually granulated and modulated, producing a labyrinth of echoes, which are further processed by filters, dynamic processors and saturation modules.
| Price | $5.99 |
|---|---|
| Author | Amazing Noises |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Inter-App Audio (IAA), Audiobus |
| Rating | total: (40), current: (40) |
| Released | 02/14/2015 |
| Updated | 01/28/2026 |
The Amazing Noises Reverb is a Feedback Delay Network (FDN) Reverb Effect, which can create nice reverberated ambiences, from small rooms to huge buildings.
| Price | $4.99 |
|---|---|
| Author | Amazing Noises |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Inter-App Audio (IAA), Audiobus |
| Rating | total: (14), current: (14) |
| Released | 12/30/2014 |
| Updated | 01/28/2026 |
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 | $5.00 |
|---|---|
| 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: (32), current: (32) |
| Released | 09/09/2020 |
| Updated | 09/07/2025 |
Kajita combines two-stage multi-tap stereo delay with reverb, allowing you to create complex spatial effects.
| Price | $5.00 |
|---|---|
| Author | iceWorks, Inc. |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link |
| Rating | total: (20), current: (20) |
| Released | 08/29/2021 |
| Updated | 09/07/2025 |
The ERS 250 reverb audio plugin was originally designed and sold by Harrie Munnik and his Dutch company EmptyRoomSystems.
| Price | $13.99 |
|---|---|
| Author | Christian Siedschlag |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Inter-App Audio (IAA), Audio Unit (AU) |
| Rating | total: (6), current: (6) |
| Released | 09/03/2021 |
| Updated | 01/03/2026 |
During a routine mining expedition in the outer regions of the galaxy five mysterious boxes of unknown origin were found. Rumours among the workers spread quickly that there was a strange feeling being around these boxes, as if time flows in a different way, not just forward but sometimes also folding back on itself. The miners nicknamed them, the five boxes of reverberation. After the excavation process, to study them more closely, it was decided to transport them back to earth.
| Price | $4.99 |
|---|---|
| Author | Erik Sigth |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU) |
| Rating | total: (57), current: (57) |
| Released | 10/02/2021 |
| Updated | 06/17/2024 |
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: (22), current: (22) |
| Released | 08/05/2013 |
| Updated | 06/19/2025 |
Inter-App Audio (IAA) is a technology by Apple Inc, allows audio connection feature between apps. To use this feature, you need to have at least two IAA compatible applications installed on your iOS (iPhone, iPad etc.) device, first acts as a host and receives audio stream, and second acts as a node (or instrument) and publishes an output. Also, IAA node can transform audio or MIDI signal sent by host app, and return it in a modified form.