# AU3FX:Dub — AUv3 highly tweakable delay

> Tweakable stereo delay AudioUnit effect for diverse audio manipulation. (iPhone/iPad app by Kymatica AB.)

- Source: https://appshunter.io/ios/app/au3fxdub/id1542042948 (this page in markdown: same URL + `.md`)
- Developer: [Kymatica AB](https://appshunter.io/developer/522046659)
- Category: Music
- Price: $5.99
- Rating: 5.00/5 from 20 App Store ratings · 11 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 2 MB
- Languages: American English
- Released: 2020-12-10
- Data updated: 2026-09-06
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/au3fxdub/id1542042948/reviews.md

## What is AU3FX?

A highly tweakable stereo delay AudioUnit effect, suitable for everything from clean digital delays to filthy dub echoes, flangers and broken cassette tapes.

This app is part of the AU3FX series, a collection of simple and powerful audio unit effect plugins.

• High quality 32-bit DSP engine. 
• A multitude of parameters to tweak to get a wide range of sounds. 
• Tape simulation (noise and warble).
• Filters in the delay loop for typical dub sound.
• Stereo delay, stereo detune, ping-pong delay.
• Sinewave and random dual LFO for flangers and other modulations.
• Comes with several bundled presets.
• Use multiple instances at the same time.
• Save/load session state in host.
• External access and control of all parameters from host.
• User presets shared across hosts (on iOS 13 and later).

## Key features

- Highly tweakable stereo delay
- 32-bit DSP engine
- Tape simulation (noise and warble)
- Filters in delay loop
- Stereo, detune, and ping-pong modes
- Dual LFO for modulation
- Bundled presets and user presets

## Recent user reviews (10 of 11)

All indexed reviews: https://appshunter.io/ios/app/au3fxdub/id1542042948/reviews.md

### 5/5 — One of my go-to plugins!

*2025-05-17*

Some plugins are just fun to try but this one I tend to use a lot since I got it about a year ago. I like using it on individual instruments to spice them up.

### 5/5 — Kymatica essential - my go to!

*2024-11-14*

All Kymatica apps are essential for iOS music making. Get them! This one has so many possibilities and sounds so good. Love it!

### 5/5 — Sounds great; only stereo sync?

*2024-05-29*

It’s a nice lightweight delay but it would be better if L and R channels could be decoupled. Unless I’m reading the UI incorrectly.

### 5/5 — Essential iOS plug-in for Reggae/Dub

*2024-04-20*

I’ve been sucked into the black hole of music production and there’s no turning back. I go back and forth between Logic on my desktop and GarageBand on my iPhone.  Despite the mega differences in the two DAWs I find myself recording mostly in iOS… with that being said I am always searching for new apps to expand my digital appetite. I mainly record reggae music. Reverb and Delay are essential tools in Authentic Reggae production. I believe my days of endlessly searching for that perfect Delay app are over. I’ve wasted time and money on sub-par delay apps until now. This plug-in is a certified gold mine! I’ve only just started exploring and experimenting with this app and the results are beyond satisfying. So glad I stumbled upon this amazing app… don’t think twice just go ahead and purchase you won’t regret it!!

### 5/5 — Dope DUB!

*2022-12-20*

This is a great delay, capable of all the delay tricks. I really like the ping pong slider, wobble and stereo detune. It can go anywhere from subtle to completely whacked.

### 5/5 — Kymatica essential

*2022-09-12, version 1.2*

All Kymatica apps are essential for iOS music making. Get them! This one has so many possibilities and sounds so good. Love it!

### 5/5 — nice

*2021-11-26*

really interesting and
unique delay

### 5/5 — Mit Un/Mute-Button!

*2021-04-13*

Super Klang, gut durchdachtes Design, einfache Bedienung.

### 5/5 — Kymatica als sind sehr gut

*2021-04-03*

Kleiner Speicherbedarf....gut einstellbar.... viele Parameter 

Und jetzt AU.... danke

### 4/5 — Good unit but..

*2021-01-14*

The delay this is great. 

I am a bit miffed that I had to buy it as an AU unit when I already had the app though.

## Frequently asked questions about AU3FX

### What kind of sounds can AU3FX:Dub create?

AU3FX:Dub can produce a wide range of sounds, from clean digital delays and ping-pong effects to gritty dub echoes, flangers, and even sounds reminiscent of broken cassette tapes due to its tape simulation and filter options.

### Does AU3FX:Dub have ads?

No, AU3FX:Dub does not contain advertisements. It is a paid application.

### What devices does AU3FX:Dub support?

AU3FX:Dub is supported on iPhone, iPad, and iPod. It utilizes a high-quality 32-bit DSP engine for its audio processing.

### How often is AU3FX:Dub updated?

The latest version of AU3FX:Dub is 1.2, which was released on November 12, 2021. This indicates a history of updates, though the exact frequency is not specified.

### Can I save my custom settings in AU3FX:Dub?

Yes, AU3FX:Dub allows you to save and load session states within your host application. User presets can also be shared across hosts on iOS 13 and later.

### What is the price of AU3FX:Dub?

AU3FX:Dub is available for a one-time purchase of $5.99. It is a paid application with no in-app purchases or subscriptions.

### Is AU3FX:Dub suitable for beginners?

While AU3FX:Dub offers a multitude of parameters for advanced tweaking, it also comes with several bundled presets that can help beginners explore its capabilities and achieve desired sounds quickly.

### What is the age rating for AU3FX:Dub?

AU3FX:Dub has an age rating of 4+, making it suitable for a wide range of users. Its focus is on audio manipulation for music production.

## Version history (last 3 releases)

### 1.2 — 2021-11-12

- Don't crash if tapping page bar when there's no pages.
- tempo sync: don't set time param unless it changed. avoids triggering AUM ControlFinder.

### 1.1 — 2020-12-14

- Fix next/prev preset navigation in some hosts
- Support for iOS 12

Saving user presets in the plugin requires iOS 13 or later, but user presets can still be saved via AUM on iOS 12.

### 1.0 — 2020-12-10

No release notes.

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| --- | --- | --- | --- |
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## More apps by Kymatica AB

- [AudioShare](https://appshunter.io/ios/app/audioshare/id543859300)
- [SECTOR](https://appshunter.io/ios/app/sector/id618095247)
- [The Oscillator](https://appshunter.io/ios/app/the-oscillator/id640819682)
- [AUFX:Space](https://appshunter.io/ios/app/aufxspace/id665650685)
- [AUFX:Dub](https://appshunter.io/ios/app/aufxdub/id678982701)
- [AUFX:PeakQ](https://appshunter.io/ios/app/aufxpeakq/id781852954)

All apps by Kymatica AB: https://appshunter.io/developer/522046659

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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 2026-09-06.*