# CH-21 Chorus — AUv3 AudioUnit v3

> AUv3 audio effect plugin for Chorus, Flanger, and Vibrato. (iPhone/iPad app by Paul Betowski.)

- Source: https://appshunter.io/ios/app/ch-21-chorus/id1555325164 (this page in markdown: same URL + `.md`)
- Developer: [Paul Betowski](https://appshunter.io/developer/538476580)
- Category: Music, Music
- Price: $2.99
- Rating: 4.50/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 58 MB
- Languages: English
- Released: 2021-04-07
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ch-21-chorus/id1555325164/reviews.md

## What is CH?

This is an AudioUnit v3 plugin only. To be used in a 3rd party host app.

Three in one Chorus, Flanger and Vibrato AUv3 effect plugin / app extension. 

Features:
AUv3
Delay
Feedback
LFO
Mix control

## Key features

- Chorus, Flanger, Vibrato effects
- AUv3 plugin
- Delay control
- Feedback control
- LFO modulation
- Mix control

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/ch-21-chorus/id1555325164/reviews.md

### 4/5 — Great sound but..

*2024-01-08*

When automating the parameters in Cubasis, a scratchy sound is heard when the automation is moving the knobs. However the sound is good otherwise.

## Frequently asked questions about CH

### What is CH-21 Chorus?

CH-21 Chorus is an AudioUnit v3 plugin that provides three distinct audio effects: Chorus, Flanger, and Vibrato. It is designed to be used within other compatible music production applications on your iPad.

### How much does CH-21 Chorus cost?

CH-21 Chorus is a paid application, available for a one-time purchase price of $2.99.

### What devices does CH-21 Chorus support?

CH-21 Chorus is exclusively supported on iPads. It is not compatible with iPhones or other Apple devices.

### What is the age rating for CH-21 Chorus?

CH-21 Chorus has an age rating of 4+, indicating it is suitable for users of all ages.

### When was CH-21 Chorus last updated?

CH-21 Chorus was last updated on April 7, 2021, with version 1.0. The initial release date was also April 7, 2021.

### Does CH-21 Chorus have ads?

The provided data does not indicate that CH-21 Chorus contains advertisements. It is a paid application.

### What are the key features of CH-21 Chorus?

CH-21 Chorus offers Chorus, Flanger, and Vibrato effects, along with controls for Delay, Feedback, LFO modulation, and Mix.

### How does CH-21 Chorus compare to other modulation plugins?

CH-21 Chorus offers a three-in-one solution for common modulation effects within the AUv3 framework, making it a convenient choice for iPad-based music production.

## Version history (last 1 release)

### 1.0 — 2021-04-07

No release notes.

## Apps similar to CH

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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## More apps by Paul Betowski

- [DUBSTEP / Loops / Keyboard / Drums](https://appshunter.io/ios/app/dubstep-loops-keyboard-drums/id557267838)
- [E Theremin – Electro Theremin](https://appshunter.io/ios/app/e-theremin-electro-theremin/id591471950)
- [SynthDrum Pads](https://appshunter.io/ios/app/synthdrum-pads/id657577819)
- [DNB / Loops / Synth](https://appshunter.io/ios/app/dnb-loops-synth/id670737604)
- [E–Theremin MKII](https://appshunter.io/ios/app/etheremin-mkii/id905407070)
- [WubSynth](https://appshunter.io/ios/app/wubsynth/id1074423582)

All apps by Paul Betowski: https://appshunter.io/developer/538476580

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*