iOS Musician Apps (570) Supported Technologies is Audio Unit (AU)

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Harness the enormous power of 8 polyphonic synths: meet KASPAR Supersynthesizer.

Price $19.99
Author Yonac Inc.
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.57609 (92), current: 4.57609 (92)
Released 07/20/2017
Updated 11/03/2018

Galileo Organ 2 is a tonewheel and transistor organ app.

Price $14.99
Author Yonac Inc.
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.44086 (93), current: 4.44086 (93)
Released 07/27/2018
Updated 02/13/2022

ToneStack PRO is a guitar effects processor.

Price $9.99
Author Yonac Inc.
Type Effect
Effect type Guitar effects
Supports Audio Unit (AU)
Rating total: 4.34615 (78), current: 4.34615 (78)
Released 04/26/2021
Updated 05/12/2025

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: 4.81818 (22), current: 4.81818 (22)
Released 04/17/2020
Updated 11/28/2025

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: 4.75 (12), current: 4.75 (12)
Released 04/10/2020
Updated 11/28/2025

Session Notes AU provides access to a custom-tailored notes database directly within your Digital Audio Workstation (DAW).

Price $1.99
Author Christian Thompson
Type Tool
Supports Audiobus, Audio Unit (AU)
Rating total: 3.71429 (7), current: 3.71429 (7)
Released 02/18/2021
Updated 01/07/2025

Mammoth is a bass plugin featuring two-band signal processing that includes a bass maximizer, 3 types of drive, a tone stack, cabinet simulations and much more.

Price $7.99
Author Aurora DSP
Type Effect
Effect type Bass effects
Supports Audio Unit (AU)
Rating total: 4.76471 (17), current: 4.76471 (17)
Released 06/16/2020
Updated 07/17/2024

Back to fundamentals….Compositional practice is about constructing and organizing multiple layers of sonic material at first step. In production, we use DAW’s to present this material on separate tracks with either synthesized sounds in real time, or recorded material as sound files or live audio input.

Price $34.99
Author SonicPlanet Audio Video Teknolojileri Anonim Sti.
Type Effect
Effect type Other
Supports Audio Unit (AU)
Rating total: 3.75 (8), current: 3.75 (8)
Released 10/31/2020
Updated 02/21/2024

DOTEC-AUDIO presents DeePopMax, a big hit“Loudness Maximizer" for MacOS, now available for iOS, including AudioUnit V3 support.

Price $7.99
Author fmfmsoft Corp.
Type Effect
Effect type Equalizer, Filter, Compressor, Limiter, Gate, Other
Supports Audio Unit (AU)
Rating total: 5 (2), current: 5 (2)
Released 08/31/2020
Updated 11/29/2024

DOTEC-AUDIO presents DeeEQ, as a popular "Equalizer" for MacOS, now available for iOS, including AudioUnit V3 support.

Price $7.99
Author fmfmsoft Corp.
Type Effect
Effect type Equalizer, Filter
Supports Audio Unit (AU)
Rating total: 5 (2), current: 5 (2)
Released 08/31/2020
Updated 11/29/2024

Yonac’s flagship Magellan Synthesizer 2 is a new alchemy of pristine sounds, innovative features, and devotion to user friendliness — all the same preserving the wicked soul of the original.

Price $14.99
Author Yonac Inc.
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Audio Unit (AU), Ableton Link
Rating total: 4.72581 (124), current: 4.72581 (124)
Released 02/23/2020
Updated 01/20/2022

Bit Maestro is an AUv3 bit crusher that goes beyond regular bit rate reduction, allowing you to affect and manipulate your sound at the individual bit level.

Price $4.99
Author David Blake
Type Effect
Effect type Distortion, Drive etc., Other
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.76923 (26), current: 4.76923 (26)
Released 02/20/2020
Updated 03/20/2020

Kauldron is a synth with new modeling technology, combined with features help you create aggressive synth sounds full of rich analog textures with the fewest knob tweaks.

Price $9.99
Author Yonac Inc.
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.62962 (135), current: 4.62962 (135)
Released 11/15/2017
Updated 02/13/2022

Steel Guitar PRO is a guitar processor that combines cutting-edge realtime audio generation with control interface. It provides guitar models, built-in amps & FX processing, MIDI control, AUv3, and good customizability.

Price $9.99
Author Yonac Inc.
Type Effect
Effect type Guitar effects
Supports Audio Unit (AU)
Rating total: 4.57143 (63), current: 4.57143 (63)
Released 06/23/2022
Updated 07/08/2022

Tardigrain is a granular synthesizer. Sounds are created by taking smaller fragments of a sample and playing them back in a non linear fashion, with settings for grain size, direction, step size and more.

Price $5.99
Author Erik Sigth
Type Instrument
Instrument type Synth
Instrument sounds Keyboards
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.52632 (95), current: 4.52632 (95)
Released 02/28/2018
Updated 11/25/2025

Need to look up sheet music, guitar tablatures, lyrics, mixing notes, chord charts or search for a ‘how to...’ YouTube video? Web AU makes that possible without disrupting your audio production workflow.

Price $1.99
Author Christian Thompson
Type Tool
Supports Audio Unit (AU)
Rating total: 3.66667 (18), current: 3.66667 (18)
Released 12/22/2020
Updated 01/06/2025

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: 4.48571 (35), current: 4.48571 (35)
Released 04/18/2020
Updated 11/28/2025

BLEASS filter is an essential tool for musicians: inspired by classic analog filters, it features an envelope follower as well as a LFO and a warm sound which create mind boggling filter sweep effects on any sound source: guitars, vocals, keyboards, drums ...

Price $3.99
Author BLEASS
Type Effect
Effect type Equalizer, Filter, Modulation effects
Supports Audiobus, Audio Unit (AU)
Rating total: 5 (20), current: 5 (20)
Released 06/20/2019
Updated 09/12/2025

Roxsyn is a metamorphic guitar synthesizer.

Price $19.99
Author Yonac Inc.
Type Instrument
Instrument type Synth
Instrument sounds Guitar
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link
Rating total: 4.65169 (89), current: 4.65169 (89)
Released 08/05/2019
Updated 11/14/2024

VS provides a creative way to generate beautiful graphical representations of your music projects. Driven by both audio and MIDI data, VS is the visual equivalent of a traditional synthesizer.

Price $14.99
Author Imaginando Lda
Type Tool
Supports Audiobus, Audio Unit (AU)
Rating total: 4.65254 (118), current: 4.65254 (118)
Released 06/14/2021
Updated 11/27/2025