iOS Musician Apps (567) Supported Technologies is Audio Unit (AU)

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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: 3.65789 (266), current: 3.65789 (266)
Released 09/17/2019
Updated 06/03/2025

Rotary is a rotating cabinet effect that simulates a Leslie speaker. It produces a pulse-like vibrato effect depending on the speed of rotation.

Price $7.99
Author Eventide
Type Effect
Effect type Modulation effects
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.30435 (23), current: 4.30435 (23)
Released 10/09/2019
Updated 03/06/2024

RoughRider3 is a dynamic compressor.

Price Free
Author Audio Damage, Inc.
Type Effect
Effect type Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.59999 (75), current: 4.59999 (75)
Released 01/27/2020
Updated 02/13/2020

Roxsyn is a metamorphic guitar synthesizer.

Price $4.99 $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

Rozeta is a suite of MIDI sequencers and controllers.

Price $9.99
Author Bram Bos
Type Controller
Supports Audio Unit (AU)
Rating total: 4.77852 (149), current: 4.77852 (149)
Released 11/15/2017
Updated 05/24/2023

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: 3.86667 (15), current: 3.86667 (15)
Released 03/22/2016
Updated 04/14/2022

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 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 (6), current: 5 (6)
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 (15), current: 5 (15)
Released 09/08/2021
Updated 12/29/2025

Ruismaker is a unique drumsynth plugin (i.e. it does not use samples), which is coupled with a creative Euclidean sequencer when run in standalone mode.

Price $4.99
Author Bram Bos
Type Instrument
Instrument type Synth
Instrument sounds Drums, Percussion
Supports Audio Unit (AU)
Rating total: 4.75439 (57), current: 4.75439 (57)
Released 06/17/2016
Updated 08/14/2025

Ruismaker FM's simple, yet flexible synthesis engine lets you create anything from snaredrums, kickdrums and spacy toms to weird and unconventional percussive sounds and effects.

Price $4.99
Author Bram Bos
Type Instrument
Instrument type Synth
Instrument sounds Drums, Percussion
Supports Audio Unit (AU)
Rating total: 4.96296 (54), current: 4.96296 (54)
Released 09/07/2016
Updated 08/14/2025

A different kind of drumsynth. Ruismaker Noir presents a hybrid approach between synthesized drums and rhythmic bass sounds - coming together in the fully integrated step sequencer.

Price $9.99
Author Bram Bos
Type Instrument
Instrument type Synth
Instrument sounds Drums, Percussion
Supports Audio Unit (AU)
Rating total: 4.7957 (93), current: 4.7957 (93)
Released 11/11/2018
Updated 08/31/2023

RX950 Classic AD/DA Converter is a Classic AD/DA Converter emulator.

Price $1.99
Author Inphonik
Type Effect
Effect type Other
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.63999 (50), current: 4.63999 (50)
Released 07/28/2018
Updated 04/02/2019

During a routine mining expedition in the outer regions of the galaxy five mysterious boxes of unknown origin were found. Rumours among the workers spread quickly that there was a strange feeling being around these boxes, as if time flows in a different way, not just forward but sometimes also folding back on itself. The miners nicknamed them, the five boxes of reverberation. After the excavation process, to study them more closely, it was decided to transport them back to earth.

Price $4.99
Author Erik Sigth
Type Effect
Effect type Reverb, Delay, Echo
Supports Inter-App Audio (IAA), Audiobus, Audio Unit (AU)
Rating total: 4.71929 (57), current: 4.71929 (57)
Released 10/02/2021
Updated 06/17/2024

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

ScaleBud is a music theory tool for composers, artists and learners. It has more than 40 most popular scales and counting.

Price $4.99
Author Cem Olcay
Type Tool
Supports Audiobus, Audio Unit (AU)
Rating total: 4.3125 (32), current: 4.3125 (32)
Released 08/04/2018
Updated 11/17/2020

Scatterbrain is a plugin audio effect (AUv3, Audio Unit), which chops up incoming audio into rhythmical steps and sends these slices out to multiple outputs in your plugin host.

Price $3.99
Author Bram Bos
Type Effect
Effect type Other
Supports Audio Unit (AU)
Rating total: 4.72 (50), current: 4.72 (50)
Released 02/13/2020
Updated 11/30/2021

Schlap is a characterful, colourful and aggressive sounding program-dependent AUv3, IAA & standalone compressor.

Price $4.99
Author Caelum Audio
Type Effect
Effect type Compressor, Limiter, Gate
Supports Inter-App Audio (IAA), Audio Unit (AU)
Rating total: 4.94118 (17), current: 4.94118 (17)
Released 12/31/2020
Updated 11/04/2022

Get audio visuals with your AUv3 host or the standalone app. Scope uses a two-axis graph to give a visual representation of a waveform over time, with the horizontal axis representing time and the vertical axis representing the amplitude.

Price $2.99
Author DiscoDSP LLC
Type Tool
Supports Audio Unit (AU)
Rating total: 4.2 (20), current: 4.2 (20)
Released 05/11/2020
Updated 02/22/2026