iOS Musician Apps (120) Supported Technologies is Audio Unit (AU), Free

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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

Comp 609 is a compressor AUv3 plug-in.

Price Free
Author RRS, OOO
Type Effect
Effect type Compressor, Limiter, Gate
Supports Audio Unit (AU)
Rating total: 4.84 (25), current: 4.84 (25)
Released 08/15/2020
Updated 12/28/2025

ToneBoosters Spectrogram shows a real-time spectrogram of the incoming audio signal. The ToneBoosters Spectrogram app captures the microphone input and processes the signals in real time.

Price Free
Author ToneBoosters
Type Tool
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.41859 (43), current: 4.41859 (43)
Released 09/08/2020
Updated 12/28/2025

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

The Red Rock Sound SA60 real time 1/3 octave Spectrum Analyser combines ease of use, accuracy and versatility in one economical, reliable unit. Interface is modelled on classic DN60 spectrum analyser, originally developed in 1980.

Price Free
Author RRS, OOO
Type Tool
Supports Audio Unit (AU)
Rating total: 5 (10), current: 5 (10)
Released 05/15/2020
Updated 12/29/2025

Does your bass sound dull and lifeless? Red Rock Sound Bass Enhancer will be your choice to correct this deficiency. Bass Enhancer designed for saturation harmonics of low-frequency, it creates the effect of lower, deeper frequencies. This effect can not be created with simple equalization.

Price Free
Author RRS, OOO
Type Effect
Effect type Bass effects
Supports Audio Unit (AU)
Rating total: 4.54054 (37), current: 4.54054 (37)
Released 04/18/2020
Updated 12/28/2025

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

DrumComputer is the new specialist for synthetic drums, combining classic and modern synthesis with flexible modulations and luxurious sequencing.

Price Free
Author Sugar Bytes GmbH
Type Instrument
Instrument sounds Drums, Percussion
Supports Audio Unit (AU), Ableton Link
Rating total: 4.80163 (615), current: 4.80163 (615)
Released 11/05/2020
Updated 12/05/2025

Now available as an Audio Unit extension (AUv3) allowing it to act as a powerful MIDI sequencer and clip launcher.

Price Free
Author Imaginando Lda
Type Tool
Supports Audio Unit (AU)
Rating total: 4.30769 (689), current: 4.30769 (689)
Released 03/04/2015
Updated 11/22/2025

GarageBand is a DAW by Apple.

Price Free
Author Apple
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: 4.07413 (113536), current: 4.07413 (113536)
Released 03/10/2011
Updated 11/03/2025

A simple free music player that allows you to play music files while playing effectors that support Audio Units Extension (AUv3 plugin) format.

Price Free
Author fmfmsoft Corp.
Type Host, Tool
Instrument type Sampler
Supports Audio Unit (AU)
Rating total: 4.45455 (11), current: 4.45455 (11)
Released 08/31/2020
Updated 11/01/2025

AI Machine Modeled tones player.

Price Free
Author IK Multimedia US, LLC
Type Effect
Effect type Distortion, Drive etc., Guitar effects, Bass effects
Supports Audio Unit (AU)
Rating total: 2.62857 (70), current: 2.62857 (70)
Released 11/15/2022
Updated 10/17/2025

Poly 2 is a generative sequencer that creates evolving patterns and melodies based on the power of polyrhythms.

Price Free
Author James Milton
Type Host, Tool
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.77492 (662), current: 4.77492 (662)
Released 10/12/2019
Updated 09/04/2025

Built for Live performance and hands free use, Quantiloop recreates the simplicity of a hardware loop pedal in an iOS app.

Price Free
Author Stephan Marx
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 2.94595 (37), current: 2.94595 (37)
Released 09/01/2017
Updated 08/18/2025

Get started on any device or platform. With its collection of both modern and legendary sounds, Zenbeats brings Roland’s history of innovation into an environment.

Price Free
Author Roland Corporation
Type Instrument
Instrument type Sampler
Instrument sounds Drums, Percussion
Supports Audio Unit (AU)
Rating total: 3.65283 (265), current: 3.65283 (265)
Released 09/17/2019
Updated 06/03/2025
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