Inter-App Audio (IAA) technology compatible effect application list for iOS
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: (2598), current: (2598) |
| Released | 07/14/2016 |
| Updated | 04/26/2026 |
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: (15), current: (15) |
| Released | 12/06/2016 |
| Updated | 04/24/2026 |
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 |
rrarrow is the experimental noise machine / modular audio effect for the iOS featuring extended feedback capabilities.
| Price | $2.99 $3.99 |
|---|---|
| Author | Alexey Nadzharov |
| Type | Effect |
| Effect type | Other |
| Supports | Inter-App Audio (IAA), Audiobus |
| Rating | total: (18), current: (18) |
| Released | 02/25/2014 |
| Updated | 04/20/2026 |
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 |
The Dub Filter is a dual low-pass/high-pass 24/48 dB filter, with resonance and the exclusive Overlap parameter.
| Price | Free |
|---|---|
| Author | Amazing Noises |
| Type | Instrument, Effect |
| Instrument sounds | Other |
| Effect type | Equalizer, Filter |
| Supports | Inter-App Audio (IAA), Audiobus |
| Rating | total: (71), current: (71) |
| Released | 05/29/2015 |
| Updated | 04/10/2026 |
Turnado is a multi-effect tool, crafted especially for massive real-time audio manipulation.
| Price | Free |
|---|---|
| Author | Sugar Bytes GmbH |
| Type | Effect |
| Effect type | All-in-one |
| Supports | Inter-App Audio (IAA), Audiobus |
| Rating | total: (61), current: (61) |
| Released | 05/01/2013 |
| Updated | 04/07/2026 |
VintageRack is a multi-effect application that contains modules modeling notable retro gear from the early digital era.
| Price | $14.99 |
|---|---|
| Author | Igor Vasiliev |
| Type | Effect |
| Effect type | All-in-one |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link |
| Rating | total: (7), current: (7) |
| Released | 09/21/2022 |
| Updated | 03/16/2026 |
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 |
PhaseThree is a detailed model of the MuTron Bi-Phase, with all the lovely sound of that unit (along with its foibles and quirks.)
| Price | $4.99 |
|---|---|
| Author | Audio Damage, Inc. |
| Type | Effect |
| Effect type | Chorus, Flanger, Phaser etc. |
| Supports | Inter-App Audio (IAA), Audio Unit (AU) |
| Rating | total: (14), current: (14) |
| Released | 11/15/2018 |
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 |
ChannelStrip is, as its name implies, a channel strip app and AUv3 plugin. With a gate, equalizer, and compressor, ChannelStrip can provide a solid and easy-to-use channel control for your iOS mixing needs.
| Price | $3.99 |
|---|---|
| Author | Audio Damage, Inc. |
| Type | Effect |
| Effect type | Equalizer, Filter, Compressor, Limiter, Gate |
| Supports | Inter-App Audio (IAA), Audio Unit (AU) |
| Rating | total: (3), current: (3) |
| Released | 05/01/2019 |
| Updated | 09/27/2024 |
To create Panstation, we started with a loose model of the venerable Drawmer M500's panning engine, then added the counting features from the Audio & Design PanScan (probably the most famous vintage autopanner, and the "secret weapon" of many well-known producers).
| Price | $3.99 |
|---|---|
| Author | Audio Damage, Inc. |
| Type | Effect |
| Effect type | Stereo, Pan effects |
| Supports | Inter-App Audio (IAA), Audio Unit (AU) |
| Rating | total: (11), current: (11) |
| Released | 04/08/2020 |
| Updated | 04/08/2020 |
Cubasis 2 is a fully featured iOS-based music production system includes sequencer, instruments, effects and more.
| Price | $14.00 |
|---|---|
| Author | Steinberg Media Technologies GmbH |
| Type | Host, Instrument, Effect |
| Instrument type | Sampler, Synth |
| Instrument sounds | All-in-one |
| Effect type | All-in-one |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU) |
| Rating | total: (239), current: (239) |
| Released | 12/17/2012 |
| Updated | 11/24/2021 |
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: (109), current: (109) |
| Released | 06/20/2018 |
| Updated | 11/12/2024 |
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 |
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.