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Frobulator

Frobulator

by Matthew Caldwell

19 ratings
16 reviews
🎵 Music

Archived App (Last seen on 28 Apr 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • July 14, 2015
  • February 7, 2020

Developer

Matthew Caldwell
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Frobulator screenshot #1 for iPhone
Frobulator screenshot #2 for iPhone
Frobulator screenshot #3 for iPhone
iphone
ipad
⭐16
Reviews↘︎
❓8 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
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About

This audio effect app offers a unique stereo modulated filter and delay, going beyond typical echo boxes. Its experimental "FAIL" mode introduces chaotic variations for unconventional soundscapes. It integrates with other music apps for live input or project work.

✓Stereo modulated filter
✓Unique delay processing
✓Experimental "FAIL" mode
✓Live audio input
✓Inter-App Audio integration
✓Audiobus support
Show original description

What's New in Frobulator

1.2.2

February 7, 2020

Updated to work with iOS 12.4 and higher. In particular, this fixes the issue of always connecting to the device microphone when brought to the foreground after being launched from an IAA host such as Audiobus or AUM. Also, the layout is adapted for "notch" devices like iPhone X.

More

User reviews

Most RecentHighest RatedLowest Rated

BAD SIGNAL

AUM is giving this plug in a “bad signal message”, iOS 18.2. It was fun while it lasted!
LaarzLaarz

Just awesome - still works as IAA in AUM 12-24-22

Get them all The 1-star reviewer obviously didn’t RTFM.

Any chance of AUv3?
anicktanickt

Umm

I don’t get the good reviews, it sits on mute, then just feeds back if you turn mute off, with no affect on the app synth at all. Who’s paying for the good reviews. But for the price it’s perfect. Delete it with no regrets. The other 2 right with it
frazzmatafrazzmata

Frobbing fabulous....

Subtle, and easy to use but highly effective under the right circumstances. The one thing this really needs, is AU3 compatibility.

Nic
TheWightGuyTheWightGuy

Great little effects apps!!!

Thank you Matthew for updating your 3 great effects apps!!
pmbearpmbear
See 11 more reviews

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FAQ

What makes Frobulator's sound different from a normal echo box?

Frobulator uses a combination of time and frequency domain processing, which gives it a distinct sound profile compared to standard echo or delay effects.

How does the "FAIL" mode work in Frobulator?

The "FAIL" mode introduces chaotic variations driven by an iterative map, designed to add unpredictable and unconventional elements to your audio.

Can I use Frobulator with other music applications?

Yes, Frobulator supports Inter-App Audio (IAA) and Audiobus, allowing you to connect it with other music apps like GarageBand.

Does Frobulator have ads?

No, Frobulator is ad-free, providing an uninterrupted audio processing experience.

What devices is Frobulator compatible with?

Frobulator is available for iPhone, iPad, and iPod touch devices.

How often is Frobulator updated?

The latest version, 1.2.2, was released on February 7, 2020. Updates are infrequent, reflecting its status as an experimental app.

What is the age rating for Frobulator?

Frobulator has an age rating of 4+, making it suitable for a wide range of users.

Does Frobulator offer an Audio Unit extension?

No, Frobulator does not provide an Audio Unit extension. The developer has stated that porting the technology to the AUv3 environment is not practical.