iOS Musician Apps (64) Supported Technologies is Audio Unit (AU), Effect Type is Equalizer, Filter

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Knorr is a plugin that adds intensity and edge to a monophonic low frequency audio source (like a bass). The algorithm adds overtones to an existing sound in a way that isn’t possible with ordinary distortion or filtering.

Price $8.99
Author Klevgränd produkter AB
Type Effect
Effect type Equalizer, Filter, Other
Supports Audio Unit (AU)
Rating total: 4.33333 (6), current: 4.33333 (6)
Released 10/14/2019
Updated 10/15/2019

Shape your sound with advanced equalising to make your tracks fit in the mix.

Price $19.99
Author Klevgränd produkter AB
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.85714 (14), current: 4.85714 (14)
Released 08/27/2018
Updated 03/09/2021

Tape Pro is a multi-fx tape emulation AUv3 plugin and app that introduces warmth, frequency shaping, modulation, noise and delay.

Price $7.99
Author Caelum Audio
Type Effect
Effect type Equalizer, Filter, Other
Supports Audio Unit (AU)
Rating total: 4.73332 (15), current: 4.73332 (15)
Released 10/30/2020
Updated 12/17/2022

Electrogene is a low fidelity audio effect combining bit-crusher, modulation, saturation and filter with scope visualizer.

Price $4.99
Author BACKPULLVER SOFTWARE LTD OOD
Type Effect
Effect type Equalizer, Filter, Distortion, Drive etc., Modulation effects
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.76923 (13), current: 4.76923 (13)
Released 11/05/2018
Updated 02/19/2024

An audio coloration utility plugin featuring individual modes for classic emulation of some iconic music production tools.

Price $4.99
Author MSXII Sound Design
Type Effect
Effect type Equalizer, Filter, Other
Supports Audio Unit (AU)
Rating total: 3.52632 (95), current: 3.52632 (95)
Released 12/01/2017
Updated 12/11/2020

FabFilter Pro-Q 3 is an EQ plug-in with up to 24 bands, analog modeling, dynamic EQ, linear phase processing.

Price $29.99
Author FabFilter
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.74468 (47), current: 4.74468 (47)
Released 06/21/2019
Updated 03/23/2026

ToneBoosters Equalizer is a dynamic equalizer plug-in.

Price $9.99
Author ToneBoosters
Type Effect
Effect type Equalizer, Filter
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.63077 (65), current: 4.63077 (65)
Released 07/30/2019
Updated 10/28/2025

Visual EQ Console is a multi-band EQ console with the ability to analyse audio in real time giving a spectrum representation of the frequency response. 

Price $8.99
Author 4Pockets.com
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.14286 (21), current: 4.14286 (21)
Released 06/23/2019
Updated 09/03/2025

The MODEL ONE is a selected, fine-tuned general purpose (transistor ladder model) filter with the ability of strong self oscillation. The cutoff slope is approximately 24dB. It can be switched to low pass or high pass processing mode.

Price $9.99
Author Jens Guell
Type Effect
Effect type Equalizer, Filter
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 5 (13), current: 5 (13)
Released 07/28/2019
Updated 02/20/2023

A simple but fast low-pass filter with control over cutoff frequency and resonance factor.

Price $0.99
Author Brad Howes
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Released 02/15/2021
Updated 02/27/2026

ToneBoosters Morphit is an AUv3 plugin for headphones correction and simulation and removes any unwanted coloration from your headphones!

Price $8.99
Author ToneBoosters
Type Effect
Effect type Equalizer, Filter, Other
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.64516 (31), current: 4.64516 (31)
Released 11/16/2019
Updated 10/28/2025

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: 3.75 (24), current: 3.75 (24)
Released 11/15/2013
Updated 03/22/2026

FilterMorph plugin takes the concept of a traditional audio filter and pairs it with overdrive, bit crunching and tape delay to perform some incredibly neat real-time or beat synced automation effects.

Price $5.99
Author 4Pockets.com
Type Effect
Effect type Equalizer, Filter, Distortion, Drive etc.
Supports Audio Unit (AU)
Rating total: 4.2 (5), current: 4.2 (5)
Released 12/13/2018
Updated 09/08/2025

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

Price $99.99
Author Future Moments
Type Effect
Effect type Equalizer, Filter, Compressor, Limiter, Gate, Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.66514 (657), current: 4.66514 (657)
Released 06/13/2017
Updated 02/04/2026

This is an AUv3 compatible stereo graphic equalizer plugin which can be used as a plugin with your favourite DAW such as Cubasis, Auria, Meteor or GarageBand.

Price $5.99
Author 4Pockets.com
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.54545 (11), current: 4.54545 (11)
Released 09/02/2018
Updated 11/30/2019

F-16 Filter is a flexible multi-mode filter with frequency response display.

Price Free
Author Blamsoft, Inc.
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 5 (18), current: 5 (18)
Released 01/19/2016
Updated 04/30/2024

FabFilter Pro-Q 2 is a transparent, high-quality equalizer plug-in for mixing and mastering purposes, with up to 24 bands and a gorgeous interface for easy and precise editing.

Price $29.99
Author FabFilter
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 4.83333 (24), current: 4.83333 (24)
Released 07/29/2018
Updated 12/20/2023

Dub Delay emulates an analog tape delay unit with various options to filter and saturate the output signal before it is fed back into the delay unit.

Price $3.99
Author Arno VAN GOCH
Type Effect
Effect type Equalizer, Filter, Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 5 (4), current: 5 (4)
Released 05/04/2023
Updated 05/22/2023

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
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