Audio Unit (AU) Equalizer, Filter Apps (62)

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Audio Unit (AU) technology enabled Equalizer, Filter effect app list for iOS

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 $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: 4.77419 (31), current: 4.77419 (31)
Released 09/09/2020
Updated 09/07/2025

ChannelEqualizer is a three band EQ AudioUnit Extension plugin, developed as an add-on for VADrumSM.

Price Free
Author Ryo Togawa
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 3.71429 (21), current: 3.71429 (21)
Released 05/19/2020
Updated 01/15/2026

Import audio and instantly get a mastered version. Immediately hear a boost in volume and overall sweetening of the mix.

Price $49.99
Author Future Moments
Type Effect
Effect type Equalizer, Filter, Compressor, Limiter, Gate, Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.66005 (656), current: 4.66005 (656)
Released 06/13/2017
Updated 01/09/2026

This app is a music player that can process the following effects in real time: Time stretch (0.5-2.0 double speed), Pitch shift (-1 ~ +1 octave), 10 band equalizer.

Price $0.99
Author Loop-Sessions.LLC.
Type Effect
Effect type Equalizer, Filter, Pitch effects
Supports Audio Unit (AU)
Rating total: 3.69565 (23), current: 3.69565 (23)
Released 11/15/2013
Updated 01/05/2026

If you play a musical instrument or sing a song, this app should be supported by you higher / lower the pitch.

Price Free
Author Loop-Sessions.LLC.
Type Effect
Effect type Equalizer, Filter, Pitch effects
Supports Audio Unit (AU)
Rating total: 4.35526 (76), current: 4.35526 (76)
Released 07/16/2013
Updated 01/05/2026

Traditional EQs influence the spectrum of the whole stereo field simultaneously. DirectionalEQ takes this concept one big step further: now you can equalize all directions in the stereo field independently.

Price $9.99
Author Christian Siedschlag
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 3.64286 (14), current: 3.64286 (14)
Released 10/27/2017
Updated 01/02/2026

Based on Classic American EQ from the late '60s, the EQ550b is a continuation of the EQ that played a major role in the history of music recording, but with an additional filter band and several new frequencies.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.76923 (13), current: 4.76923 (13)
Released 04/10/2020
Updated 01/02/2026

The EQ550 faithfully captures the punch, low-frequency transparency, and ultra-tight imaging of iconic American EQs of the late 1960’s.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.45455 (11), current: 4.45455 (11)
Released 04/10/2020
Updated 01/02/2026

PolyIvoks Filter developed on the basis of the filter of the legendary Soviet synthesizer from 1980s, and only now the legendary Soviet analog sound became available in stereo mode.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.66667 (21), current: 4.66667 (21)
Released 04/13/2020
Updated 12/29/2025

The Red Rock Sound Exciter will allow you to improve and enhance sonic quality of signal more naturally than with equalization. Unlike traditional EQ that just turns up the existing harmonics, Exciter generates additional harmonics, therefore there is no boost in the output signal level, this maintains a clear and balanced sound.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter, Other
Supports Audio Unit (AU)
Rating total: 4.85714 (21), current: 4.85714 (21)
Released 04/30/2020
Updated 12/29/2025

The EQP-1A based on Classic Program Equalizer from the '60s, original EQ is renowned for its unique ability to boost and cut the same frequencies simultaneously, thereby creating a resonant shelf, the EQP-1A faithfully models the overbuilt transformers and complex tube amplifiers of the original hardware.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 5 (15), current: 5 (15)
Released 09/08/2021
Updated 12/29/2025

The MEQ-5 based on Classic Mid-Range Equalizer from the '70s, with two bands of midrange boost and one band of midrange dip, the MEQ-5 gets the very best out of the «power region» where guitars and vocals can make or break a mix.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 5 (6), current: 5 (6)
Released 09/08/2021
Updated 12/29/2025

The EQP-1A based on Classic Program Equalizer from the '60s, original EQ is renowned for its unique ability to boost and cut the same frequencies simultaneously, thereby creating a resonant shelf, the EQP-1A faithfully models the overbuilt transformers and complex tube amplifiers of the original hardware.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 5 (5), current: 5 (5)
Released 09/08/2021
Updated 12/29/2025

In the '80s it was the first to use a different approach to tonal adjustments. In conventional analog equalizers, whether they are shelving, sweepable, graphic or parametric types, various sections of the audio spectra are boosted or attenuated by adding or subtracting bandpasses. In this case, frequency shaping is achieved by summing bandpasses.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.84 (25), current: 4.84 (25)
Released 04/17/2020
Updated 12/28/2025

The EQ-A based on Classic British EQ from the '70s. With a wide range of tonal variations, the EQ-A is an audio tool with great flexibility and sonic ability.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.77273 (22), current: 4.77273 (22)
Released 01/02/2020
Updated 12/28/2025

The EQ560 extends the features of the original hardware and joins the flexibility of the digital world to the character of the analog processing.

Price Free
Author RRS, OOO
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 3.68966 (29), current: 3.68966 (29)
Released 12/04/2019
Updated 12/28/2025

The JAF Collection is an exciting set of digital modeled classic analog synthesizer filters (VCFs) for iOS.

Price $19.99
Author Jens Guell
Type Effect
Effect type Equalizer, Filter
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.89473 (19), current: 4.89473 (19)
Released 07/24/2019
Updated 02/20/2023

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: 4.625 (32), current: 4.625 (32)
Released 11/07/2019
Updated 09/24/2020

SideBand Remix is an AUv3 plugin for final mixing and mastering. It separates the phantom center from sideband (L/R) content which is what give a stereo track its width, and lets you remix it.

Price $9.99
Author 4Pockets.com
Type Effect
Effect type Equalizer, Filter, Other
Supports Audio Unit (AU)
Rating total: 4.66667 (6), current: 4.66667 (6)
Released 07/19/2021
Updated 12/13/2025

Bark Filter is a Critical Band Analyser/Filter/Compressor.

Price $3.99
Author Harry Gohs
Type Effect, Tool
Effect type Equalizer, Filter, Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.7931 (29), current: 4.7931 (29)
Released 08/03/2017
Updated 09/28/2025
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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.