FrobulatorAU vs Dark Park
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Dark Park
This app generates unique, atmospheric synth patches for cinematic music and dark ambient soundscapes. Explore decaying, collapsing, and breathing sounds through intuitive controls and musical constraints for instant inspiration.
- Cinematic synth engine for dark ambient and scoring
- Instant scene generation for new sounds
- Macro controls for shaping mood and character
- Fog, Halation, and Sodium controls for atmosphere
- Full ADSR envelope control
- On-screen keyboard with octave shifting
- AUv3 and DAW support
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It's broken. Dusty. Hazy. But from those imperfections, something beautiful emerges. Dark Park is a generator of cinematic pads and drones, sounds that feel like they're decaying, collapsing, breathing. It's designed for exploration and instant inspiration. When you enter the park, you're given a navigation device. Tap "Scan", and the world beneath the surface generates a new synth patch. Every result is guided by musical constraints, so even the broken ones remain beautiful. If you find a sound you like, you can save it as a preset. There are two paths through the park. Take the Clear Path for delicate, melancholic textures. Or wander down the Obscured Path, and discover sounds that ache. The interface gives you a curated set of controls: Fog. Halation. Sodium. Spray. Pressure. And of course, the familiar ADSR controls to shape the sound further. Play Dark Park as a standalone instrument, or combine it with your favourite effects to create dark ambient music or arthouse cinematic scores. Feature list: - Cinematic synth engine designed for dark ambient, tension beds, drones, pads and atmospheric scoring. - Instant scene generation for fast discovery of new sounds. - Carefully voiced macro controls for shaping mood, depth, motion and character. - Fog control for darker or clearer overall tone shaping. - Halation and Sodium controls for analogue glow, slow evolution and atmosphere. - Spray and Pressure controls for texture and low-end weight. - Full ADSR envelope control. - Hold mode for sustaining evolving drones hands-free. - Built-in on-screen keyboard with octave shifting. - Scene browser for loading, saving and managing custom scenes (presets). - AUv3 support for use inside iPhone and iPad hosts. - Also compatible with Mac devices and supporting DAWs. - Standalone app for direct play without a host. - Designed to produce inspiring sounds quickly without menu diving. Important Information: • Device Layouts The standalone iPhone version and iPhone AUv3 versions are fully optimised for the iPhone screen. The iPad standalone app, desktop version, and AUv3 plugin use a fixed 1:1 interface layout. • Focused Sound Design Dark Park is intentionally designed with a specific sonic identity: cinematic, dark ambient pads and drones. It is not a general-purpose synthesiser and does not aim to recreate every type of synth sound. • Instrument Philosophy Think of Dark Park as a dedicated hardware instrument or soundbox. It excels within its intended palette rather than covering all synthesis styles. • Effects & Processing Dark Park contains no built-in effects. For best results, especially within ambient genres, use external processing such as reverb and delay.
Screenshots
Verdict
The clearest difference is price: FrobulatorAU at Free against Dark Park's $3.99. FrobulatorAU also leads on rating (5.0 vs 4.5). Dark Park's advantage is chart position (#199 vs unranked) and ratings volume (25 vs 8). On update cadence, ads, in-app purchases and device support 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
FrobulatorAU is free to download; Dark Park costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
FrobulatorAU holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 8 and 25 respectively.
FrobulatorAU ships an update every 9 days, Dark Park every 2 weeks. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.
| Parameter | FrobulatorAU | Dark Park |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 5.0 (8 ratings) — better | 4.5 (25 ratings) |
| Positive reviews | — | 62.5% of reviews |
| Number of ratings | 8 | 25 — better |
| Update frequency | Every 9 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | — | #199 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 2 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthew Caldwell | LEWIS GARETH K LE VAL |
Customer experience
FrobulatorAU
Dark Park
In-app purchases
FrobulatorAU
No in-app purchases
Dark Park
No in-app purchases








