AU3FX vs Phonolyth Cascade
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AU3FX
This professional audio effect plugin offers high-quality real-time reverb for iOS devices. It allows for extensive parameter tweaking to create a vast range of sonic spaces, from intimate rooms to infinite expanses. The app includes built-in presets and filters, with full external control and session saving capabilities.
- High quality 32-bit DSP engine
- Extensive parameter tweaking
- Built-in resonant filters
- Bundled presets
- Multiple instances
- Save/load session state
- External parameter control
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High quality real time reverb AudioUnit effect, for everything between small rooms, resonators, and infinitely large spaces. 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. • Built-in resonant filters. • 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).
Phonolyth Cascade
This app offers a versatile reverb and diffusion processor with an experimental edge. It allows for the creation of expansive modulated spaces, stereo widening, and hybrid delay/reverb effects. Explore unique sonic territories with a wide range of controls and randomized modulation.
- Expansive modulated supernatural spaces
- Stereo widening and transient smearing
- Hybrid delay/reverb effects
- Chorus, flanger, and resonator-like effects
- Randomized modulation
- Infinity and Freeze buttons
- Mix Lock for preset switching
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Cascade is a versatile reverb and diffusion processor with an experimental edge. Designed first and foremost with expansive modulated supernatural spaces in mind, it features an extensive set of controls to explore other sonic territories such as stereo widening, transient smearing, hybrid delay/reverb and chorus/flanger/resonator-like effects. Features: - Wide range of diffusion textures spanning from subtle smearing and widening to otherworldly reverberation - Lush randomized modulation - Infinity and Freeze buttons for never-ending reverb bliss - Mix Lock for switching presets while keeping the dry/wet mix constant - Freely resizable UI with light and dark color schemes - Cross-platform preset format for sharing across plugin formats and OSes - 30 factory presets to get you started - Includes an AudioUnit v3 plugin for use in host apps such as GarageBand and AUM, and a standalone app
Screenshots
Verdict
The clearest difference is price: AU3FX at $4.99 against Phonolyth Cascade's $7.99. On rating, review sentiment, ratings volume and update cadence 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
AU3FX costs $4.99 and Phonolyth Cascade $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for AU3FX against 4.9 for Phonolyth Cascade. Both are backed by a comparable volume of ratings — 14 and 30 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
AU3FX ships an update every 6 months, Phonolyth Cascade every 7 months. The most recent releases landed on October 21, 2026 and October 22, 2026 respectively.
| Parameter | AU3FX | Phonolyth Cascade |
|---|---|---|
| Price | $4.99 — better | $7.99 |
| Rating | 5.0 (14 ratings) — better | 4.9 (30 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 14 | 30 — better |
| Update frequency | Every 6 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 2 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Kymatica AB | Yuri Turov |
Customer experience
AU3FX
Phonolyth Cascade
In-app purchases
AU3FX
No in-app purchases
Phonolyth Cascade
No in-app purchases









