AU3FX vs Phonolyth Cascade
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AU3FX
This audio effect plugin offers a highly customizable stereo delay, capable of producing a wide spectrum of sounds from clean digital echoes to distorted dub effects and flangers. It features a 32-bit DSP engine with extensive tweakable parameters, tape simulation, and filters for unique sonic textures.
- Highly tweakable stereo delay
- 32-bit DSP engine
- Tape simulation (noise and warble)
- Filters in delay loop
- Stereo, detune, and ping-pong modes
- Dual LFO for modulation
- Bundled presets and user presets
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A highly tweakable stereo delay AudioUnit effect, suitable for everything from clean digital delays to filthy dub echoes, flangers and broken cassette tapes. 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. • Tape simulation (noise and warble). • Filters in the delay loop for typical dub sound. • Stereo delay, stereo detune, ping-pong delay. • Sinewave and random dual LFO for flangers and other modulations. • 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 $5.99 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 $5.99 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 — 20 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 5, 2026 and October 6, 2026 respectively.
| Parameter | AU3FX | Phonolyth Cascade |
|---|---|---|
| Price | $5.99 — better | $7.99 |
| Rating | 5.0 (20 ratings) — better | 4.9 (30 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 20 | 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









