Comparison

FrobulatorAU vs Limn Audio Generator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FrobulatorAU

This audio effect plugin transforms sounds with spectral delay, adding unique character to music projects. It's a free and open-source tool designed for use in various audio applications, offering extensive creative possibilities.

Highlights
  • 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
Features
Read full description

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.

About

Limn Audio Generator

This music creation app allows users to quickly sketch ideas, shape patterns with multiple sequencer styles, and perform live. It offers MIDI syncing and stereo WAV export, all within a touch-first interface designed for speed and expression.

Highlights
  • Touch-first groovebox interface
  • Multiple sequencer styles
  • Real-time pattern creation
  • Expressive performance controls
  • BLE MIDI and virtual MIDI routing
  • Stereo WAV export
  • MIDI clock and transport sync
Features
Read full description

Limn is a touch-first iOS groovebox built for speed, expression, and flow. Sketch ideas quickly, shape patterns in multiple sequencer styles, perform live with hands-on controls, sync with your setup over MIDI, and export stereo WAV files without leaving the app. Whether you are building loops, jamming transitions, or capturing full ideas for your DAW, Limn keeps the process immediate and musical. Core Features Multiple sequencing approaches in one app Fast pattern creation designed for real-time experimentation Expressive performance controls for live play Global effects and mix shaping BLE MIDI and virtual MIDI routing MIDI clock and transport sync workflows Stereo WAV export with in-app share support Landscape-focused interface for performance clarity Built For Fast Creative Workflow Limn is designed to reduce friction between inspiration and output. Use quick controls to move from initial rhythm and melody ideas to evolving patterns and performance-ready scenes. Morph and variation workflows help keep patterns alive without breaking momentum. MIDI + External Workflow Friendly Connect Limn to compatible DAWs and hardware via Bluetooth MIDI or virtual routes, then integrate it into your existing setup. Use sync tools to keep timing aligned and move between standalone creation and external production smoothly. Export and Share When a sketch becomes a keeper, bounce a stereo WAV directly from Limn and share it instantly. Great for idea capture, collaboration, arrangement handoff, or quick posting. Privacy and Data Limn does not require account creation for core use. Project state and exported audio remain on your device unless you choose to share files.

Screenshots

FrobulatorAU1 screens
Limn Audio Generator4 screens

Verdict

The call

The clearest difference is ratings volume: FrobulatorAU at 8 against Limn Audio Generator's 2. On price, rating, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for FrobulatorAU against 5.0 for Limn Audio Generator. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

UpkeepUpdate frequency

FrobulatorAU ships an update every 9 days, Limn Audio Generator weekly. Both last shipped on October 31, 2026.

Scorecard1 real difference · 8 level
FrobulatorAU versus Limn Audio Generator: the parameters behind the verdict, then further details
ParameterFrobulatorAULimn Audio Generator
PriceFreeFree
Rating5.0 (8 ratings)5.0 (2 ratings)
Number of ratings8 — better2
Update frequencyEvery 9 daysWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size2 MB5 MB
Age rating4+4+
DeveloperMatthew CaldwellJONATHAN RICHARD NICE

In-app purchases

None

FrobulatorAU

No in-app purchases

None

Limn Audio Generator

No in-app purchases

Questions

Is FrobulatorAU free?
FrobulatorAU is free to download, with no in-app purchases.
Is Limn Audio Generator free?
Limn Audio Generator is free to download, with no in-app purchases.
Which has better reviews, FrobulatorAU or Limn Audio Generator?
FrobulatorAU and Limn Audio Generator are both rated 5.0 out of 5 on the App Store, from 8 and 2 ratings respectively.
Do FrobulatorAU or Limn Audio Generator have ads?
Neither FrobulatorAU nor Limn Audio Generator shows ads.
Which is updated more often, FrobulatorAU or Limn Audio Generator?
FrobulatorAU ships an update every 9 days, and Limn Audio Generator weekly. Most recently, FrobulatorAU was updated on October 31, 2026 and Limn Audio Generator on October 31, 2026.

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