Spectrum is a collection of Audio Unit ports of popular eurorack synthesizer modules.
| Price | Free |
|---|---|
| Author | Thomas Burns |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Supports | Audiobus, Audio Unit (AU) |
| Rating | total: (135), current: (135) |
| Released | 07/06/2019 |
| Updated | 08/02/2021 |
Redshrike is a polyphonic synthesizer that combines a resonator designed to make more complicated sound creation and subtraction synthesis with an FM oscillator that creates violent distortion.
| Price | $9.99 |
|---|---|
| Author | iceWorks, Inc. |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link |
| Rating | total: (27), current: (27) |
| Released | 11/30/2016 |
| Updated | 09/05/2025 |
Waverley XL is a sample-based instrument, or “ROMPLER”. It is not a synthesiser that allows you to create your own instruments.
| Price | $1.99 |
|---|---|
| Author | Rob Jackson |
| Type | Instrument |
| Instrument type | Sampler |
| Instrument sounds | Keyboards |
| Supports | Audio Unit (AU) |
| Rating | total: (11), current: (11) |
| Released | 04/12/2021 |
| Updated | 01/30/2025 |
Agonizer is a monophonic synthesizer designed in collaboration with YouTuber and synth bass expert Jakob Haq of haQ attaQ
| Price | $19.99 |
|---|---|
| Author | Kai Aras |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU), Ableton Link |
| Rating | total: (201), current: (201) |
| Released | 11/11/2020 |
| Updated | 05/21/2026 |
rambo is an innovative modular groovebox and audio processing environment.
| Price | $24.99 |
|---|---|
| Author | BeepStreet |
| Supports | Audio Unit (AU) |
| Rating | total: (322), current: (322) |
| Released | 04/01/2020 |
| Updated | 04/27/2026 |
Just a Toy Synthesizer. Included: 2 Oscillators, LPF, Delay effector, Ribbon controller.
| Price | $5.99 |
|---|---|
| Author | Ryouta Kira |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Keyboards |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU) |
| Rating | total: (23), current: (23) |
| Released | 09/05/2019 |
| Updated | 10/02/2025 |
AudioKit Bass 808 Synth is perfect for earth-shaking sub bass lines and creating your own custom electronic drum sounds – It’s the ultimate tool for creating your own 808 Kick basses!
| Price | Free |
|---|---|
| Author | Audiobus Pty Ltd |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Bass |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU) |
| Rating | total: (1127), current: (1127) |
| Released | 03/27/2020 |
| Updated | 02/27/2025 |
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: (29), current: (29) |
| Released | 08/03/2017 |
| Updated | 09/28/2025 |
GeoShred is an expressive musical instrument with a multi-touch performance surface, coupled with an advanced physical model of a guitar.
| Price | $24.99 |
|---|---|
| Author | Wizdom Music LLC |
| Type | Instrument, Controller |
| Instrument type | Synth |
| Instrument sounds | Guitar |
| Supports | Inter-App Audio (IAA), Audiobus, Audio Unit (AU) |
| Rating | total: (1378), current: (1378) |
| Released | 12/15/2015 |
| Updated | 05/20/2026 |
BLEASS Motion FX contains 11 different effects which you can modulate precisely thanks to an intuitive and comprehensive sequencer.
| Price | $7.99 |
|---|---|
| Author | BLEASS |
| Type | Effect |
| Effect type | Equalizer, Filter, Reverb, Delay, Echo, Modulation effects, Pitch effects, Other |
| Supports | Audio Unit (AU) |
| Rating | total: (12), current: (12) |
| Released | 03/21/2021 |
| Updated | 08/15/2025 |
TfxMod is a chorus / flanger effect AudioUnit Extension plugin. It uses delay lines which are inspired by BBD (bucket brigade device).
| Price | $1.99 |
|---|---|
| Author | Ryo Togawa |
| Type | Effect |
| Effect type | Chorus, Flanger, Phaser etc. |
| Supports | Audio Unit (AU) |
| Rating | total: (6), current: (6) |
| Released | 07/25/2020 |
| Updated | 01/15/2026 |
Touch drum instruments with classic electronic sound. VADrumSM is virtual analog drum synthesizers, which can be used as touch instruments or as drum synthesizer modules with MIDI input.
| Price | $9.99 |
|---|---|
| Author | Ryo Togawa |
| Type | Instrument |
| Instrument type | Synth |
| Instrument sounds | Drums, Percussion |
| Supports | Audio Unit (AU) |
| Rating | total: (6), current: (6) |
| Released | 09/12/2019 |
| Updated | 09/18/2023 |
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: (24), current: (24) |
| Released | 07/29/2018 |
| Updated | 12/20/2023 |
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: (25), current: (25) |
| Released | 04/17/2020 |
| Updated | 12/28/2025 |
Inspired by dusty old circuits from 1983... Sounds Analog and Alive.
| Price | $2.99 |
|---|---|
| Author | Cooperator Design |
| Type | Instrument |
| Instrument sounds | Drums, Percussion |
| Supports | Audio Unit (AU) |
| Rating | total: (1483), current: (1483) |
| Released | 11/08/2020 |
| Updated | 01/19/2022 |
