Cab ML vs GSDSP Quantum Distortion
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cab ML
This app generates custom impulse responses using a neural network, allowing interactive sound shaping. It also includes a poweramp and microphone reverb generator for further audio manipulation.
- Neural network impulse response generation
- Interactive tag-based sound shaping
- Poweramp with multiple options
- Microphone reverb generator
- AUv3 plugin support
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Cab ML is both a standalone app and an AUv3 plugin that provides a neural network for impulse response generation. By moving tags in a window you can change the impulse response in an interactive way. Underlying a neural network will generate an impulse response based on the position of the tags. Instead of trying out all your impulse response files through a classic impulse response loader, you can now find the right sound interactively by moving the marks until you like what you hear. Furthermore Cab ML also provides a poweramp with many options and a microphone reverb generator. The free version allows you to test Cab ML completely, but every minute the plugin will be silent for 3 seconds. To remove these limits there is a one time in-app purchase. You need an audio interface to connect your instrument to your Mac. Known audio interface brands for guitar or bass are for instance Focusrite or iRig. If you don't have an audio interface, you can use the AUv3 plugin in a DAW such as GarageBand or Logic Pro. Any (guitar/bass) sound you have recorded can be fed through the Cab ML audio unit.
GSDSP Quantum Distortion
Explore four distinct distortion effects—Saturation, BitCrush, Ring Modulation, and Downsampling—blended and controlled via an intuitive XY pad. Shape harmonics, reduce digital resolution, introduce inharmonic motion, and create classic digital degradation for unique audio textures.
- Four distortion algorithms (Saturation, BitCrush, Ring Modulation, Downsampling)
- Intuitive XY pad for blending effects
- Custom waveshaping saturation
- BitWarp for tonal variation
- Tunable oscillator for ring modulation
- Adjustable downsampling rate and jitter
- AUv3 audio effect plugin
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Four complementary distortion algorithms — Saturation, BitCrush, Ring Modulation, and Downsampling — blended and shaped through an intuitive XY pad. Saturation Shape harmonics using Quantum Distortion’s custom waveshaping saturation. Adjust Drive to set the intensity from subtle warmth to strong coloration, and use Asymmetry to introduce controlled even-harmonic emphasis of vintage tube characteristics. BitCrush Reduce digital resolution using BitCrush and reshape the crushed signal with BitWarp, which bends the quantization curve for additional tonal variation. This combination allows precise control over both the amount of reduction and the character of the resulting digital artifacts. Ring Modulation Introduce inharmonic motion using ring modulation, generated by multiplying the input with a tunable oscillator. Adjust frequency and amount in real time to create anything from light metallic shading to dense, shifting sidebands. Downsampling Lower the sample rate using Downsampling, reducing temporal resolution for classic digital degradation effects. Set the rate down to 200 Hz or introduce Jitter for controlled randomness, adding instability and movement to the downsampled signal. XY Pad Blending Navigate between the four distortion algorithms using the XY pad, allowing smooth transitions or static blends across the processing modes. The background updates to reflect the current region, providing clear visual feedback while exploring hybrid distortion shapes and interactions. Quantum Distortion is an AUv3 audio effect plugin compatible with Logic Pro, AUM, Cubasis, GarageBand and many more. A Desktop version is also available for Windows and macOS (VST3 / AU / AAX). More information here: https://gs-dsp.com/products
Screenshots
Verdict
The clearest difference is review sentiment: GSDSP Quantum Distortion at 100% against Cab ML's 50%. GSDSP Quantum Distortion also leads on rating (5.0 vs 4.0) and in-app purchases (none vs 1). Cab ML's advantage is price (Free vs $14.99). On ratings volume, update cadence, ads 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
Cab ML is free to download; GSDSP Quantum Distortion costs $14.99 up front. Cab ML sells 1 one-off in-app purchase. GSDSP Quantum Distortion asks for nothing beyond the download.
GSDSP Quantum Distortion holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 10 respectively. Written reviews point the same way: 50% of Cab ML's written reviews are positive against 100% of GSDSP Quantum Distortion's.
Cab ML ships an update every 3 weeks, GSDSP Quantum Distortion every 5 weeks. The most recent releases landed on September 27, 2026 and September 22, 2026 respectively.
| Parameter | Cab ML | GSDSP Quantum Distortion |
|---|---|---|
| Price | Free — better | $14.99 |
| Rating | 4.0 (4 ratings) | 5.0 (10 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 | 10 — better |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 63 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | Jan Maes | Gustav Scholda |
Customer experience
Cab ML
GSDSP Quantum Distortion
In-app purchases
Cab ML
- Cab ML Activation$11.99
GSDSP Quantum Distortion
No in-app purchases
Questions
Is Cab ML free?
Is GSDSP Quantum Distortion free?
Which has better reviews, Cab ML or GSDSP Quantum Distortion?
Do Cab ML or GSDSP Quantum Distortion have ads?
Which is updated more often, Cab ML or GSDSP Quantum Distortion?
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