# FrobulatorAU

> Spectral delay audio effect plugin for music production. (iPhone/iPad app by Matthew Caldwell.)

- Source: https://appshunter.io/ios/app/frobulatorau/id6760205581 (this page in markdown: same URL + `.md`)
- Developer: [Matthew Caldwell](https://appshunter.io/developer/993500585)
- Category: Music
- Price: Free
- Rating: 5.00/5 from 7 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 2 MB
- Languages: American English
- Released: 2026-03-16
- Data updated: 2026-07-22
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/frobulatorau/id6760205581/reviews.md

## What is FrobulatorAU?

Venerable inter-app audio effect Frobulator reborn — at long last — as an AUv3 plugin. Use it in GarageBand, AUM or your favourite audio application. Add multiple instances in the same project. Drag your frobulation kicking and screaming into the 21st century.

Frobulator is a spectral delay effect. It makes your noises a little bit stranger. Twiddle the knobs to find something you like, or don't and throw it away. No-one will hold it against you.

Frobulator is free as in beer and free as in speech. Freer, probably, given the state of both those things these days. No ads, no in-app purchases, no subscriptions, no surveillance, no nag screens.

If you happen to be one of the 6 people who asked for this, rejoice! If you aren't, now's your chance to discover what you've been missing all this time. Or not. I'm not the boss of you.

## Key features

- Spectral delay effect
- AUv3 plugin
- Use in GarageBand, AUM, and other DAWs
- Multiple instances per project
- Free and open-source
- No ads or in-app purchases


## Frequently asked questions about FrobulatorAU

### What is FrobulatorAU?

FrobulatorAU is a spectral delay audio effect plugin that can be used in applications like GarageBand and AUM. It's designed to make sounds more unique and experimental.

### Is FrobulatorAU free to use?

Yes, FrobulatorAU is completely free to use. It is offered as 'free as in beer and free as in speech,' meaning there are no costs, ads, in-app purchases, or subscriptions.

### Does FrobulatorAU have ads?

No, FrobulatorAU does not contain advertisements. The developer explicitly states there are no ads, in-app purchases, subscriptions, or surveillance.

### What devices support FrobulatorAU?

FrobulatorAU is supported on iPhone, iPad, and iPod. It is designed to integrate with iOS audio applications.

### How often is FrobulatorAU updated?

The latest version, 1.0.2, was released on April 3, 2026, indicating recent development activity. The initial release was on March 16, 2026.

### What is the age rating for FrobulatorAU?

FrobulatorAU has an age rating of 4+. This suggests it is suitable for a wide range of users and does not contain mature content.

### Can I use multiple instances of FrobulatorAU?

Yes, you can add multiple instances of FrobulatorAU within the same audio project. This allows for complex sound design and layering of effects.

### What kind of audio effects does FrobulatorAU provide?

FrobulatorAU specializes in spectral delay effects. This type of effect manipulates the frequency spectrum of the audio signal to create unique and often otherworldly sounds.

## Version history (last 3 releases)

### 1.0.2 — 2026-04-03

Version 1.0.2 pre-emptively fixes some potential issues that have probably never happened. Also restores some lost volume and adds some new presets.

### 1.0.1 — 2026-03-25

Version 1.0.1 fixes some important audio processing bugs and should sound much better and more like its old self. It also adds some info about what the controls do -- you'll find this in the FrobulatorAU app itself rather than the plugin GUI.

### 1.0.0 — 2026-03-16

No release notes.

## More apps by Matthew Caldwell

- [Frobulator](https://appshunter.io/ios/app/frobulator/id993500586)
- [Nebulizer](https://appshunter.io/ios/app/nebulizer/id1007409385)
- [Muckraker](https://appshunter.io/ios/app/muckraker/id1018267293)
- [Osculatrix](https://appshunter.io/ios/app/osculatrix/id1046389107)
- [MuckrakerAU](https://appshunter.io/ios/app/muckrakerau/id6760476884)

All apps by Matthew Caldwell: https://appshunter.io/developer/993500585

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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 2026-07-22.*