SquashIt multiband distortion vs GSDSP Quantum Distortion
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SquashIt multiband distortion
This audio effect filter offers a unique distortion algorithm for music production. It integrates with various audio hosts and sequencers, allowing for creative sound shaping on vocals, bass, and more. Developed by musicians for musicians, it provides a powerful yet simple interface.
- Audio Unit Extension (AUv3) support
- Inter-App Audio (IAA) compatibility
- AudioBus 2 compatibility
- Load/Save presets
- Low CPU usage
- Simple and powerful UI
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This audio effect filter provides an unique distortion algorithm and should be essential in every music producers toolset. SquashIt doesn’t sound vintage, it just sounds good. SquashIt is developed by musicians for musicians. Features: • (new) Works as a Audio Unit Extension (AUv3) with compliant hosts. • Inter app audio (IAA) compatible. This means you can use it with Garageband or other IAA compatible sequencers. • AudioBus 2 compatible (including state saving) • Load / Save presets. • Remembers IAA hosts (will automatically load last used settings when a host connects) • Low cpu usage • Simple but yet powerful user interface Several professional music producers already work with the plugin: "SquashIt adds something unique that similar plug-ins doesn’t." - John De Sohn ”I think it’s fantastic and really easy to use. Also looks good and has a clean interface.” - Mattias Andreasson (producer) "Works great on vocals and bass." - Nisse Westfelt / Mixing engineer (Dirty Loops among others) "A great sounding plugin with an interface that makes you creative. I love distortion. I love Squashit even more" - Mathias Näslund / The Sweet Serenades "SquashIt makes what it says. It squashes intensity, drive and closeness out of anything. I use it for everything from kick to flute and can't wait for more plugs from Klevgränd." - Stefan Pettersson / Rougin Music Production "This plug is awesome on Mathildas vocals. It adds dirt but still sounds clean in a mysterious way which is perfect for electronica." - Peter Sydén / Artymove
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 rating: GSDSP Quantum Distortion at 5.0 against SquashIt multiband distortion's 4.3. GSDSP Quantum Distortion also leads on review sentiment (100% vs 80%). SquashIt multiband distortion's advantage is price ($9.99 vs $14.99) and iOS requirement (9.1 vs 12.0). On ratings volume, update cadence, ads and in-app purchases 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
SquashIt multiband distortion costs $9.99 and GSDSP Quantum Distortion $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GSDSP Quantum Distortion holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 6 and 10 respectively. Written reviews point the same way: 80% of SquashIt multiband distortion's written reviews are positive against 100% of GSDSP Quantum Distortion's.
SquashIt multiband distortion ships an update every 2 months, GSDSP Quantum Distortion every 5 weeks. The most recent releases landed on September 26, 2026 and September 22, 2026 respectively.
| Parameter | SquashIt multiband distortion | GSDSP Quantum Distortion |
|---|---|---|
| Price | $9.99 — better | $14.99 |
| Rating | 4.3 (6 ratings) | 5.0 (10 ratings) — better |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 | 10 — better |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.1 — better | 12.0 |
| Further details — not scored | ||
| Size | 9 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | Klevgrand Produkter AB | Gustav Scholda |
Customer experience
SquashIt multiband distortion
GSDSP Quantum Distortion
In-app purchases
SquashIt multiband distortion
No in-app purchases
GSDSP Quantum Distortion
No in-app purchases
Questions
Is SquashIt multiband distortion free?
Is GSDSP Quantum Distortion free?
Which has better reviews, SquashIt multiband distortion or GSDSP Quantum Distortion?
Do SquashIt multiband distortion or GSDSP Quantum Distortion have ads?
Which is updated more often, SquashIt multiband distortion or GSDSP Quantum Distortion?
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