# GSDSP Quantum Distortion vs Dub Filter

The clearest difference is update cadence: GSDSP Quantum Distortion at every 5 weeks against Dub Filter's every 15 months. On price, rating, review sentiment and ratings volume there is nothing between them.

GSDSP Quantum Distortion costs $14.99 and Dub Filter $14.99 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 GSDSP Quantum Distortion against 5.0 for Dub Filter. Both are backed by a comparable volume of ratings — 10 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

GSDSP Quantum Distortion ships an update every 5 weeks, Dub Filter every 15 months. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | GSDSP Quantum Distortion | Dub Filter |
| --- | --- | --- |
| Price | $14.99 | $14.99 |
| Rating | [5.0 (10 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-distortion/id6476145487/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/dub-filter-high-pass/id6478895441/reviews) |
| Number of ratings | **10** | 6 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 15 months |
| Monetization | Paid | Paid |
| Size | 80 MB | 21 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gustav Scholda](https://appshunter.io/developer/1642323227) | [AudioThing Ltd.](https://appshunter.io/developer/1659941236) |

## What reviewers say

### GSDSP Quantum Distortion

[App page](https://appshunter.io/ios/app/gsdsp-quantum-distortion/id6476145487)

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.

**Highlights:** 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

**Features:** Vision Pro support

**In-app purchases:** none


### Dub Filter

[App page](https://appshunter.io/ios/app/dub-filter-high-pass/id6478895441)

This audio plugin emulates a legendary vintage high-pass filter, offering eleven frequency steps and controls for resonance, magnetism, character, dynamics, and artifacts. It includes LFO and Envelope Follower modulation sources for creative sound design.

**Highlights:** Vintage high-pass filter emulation, Eleven frequency steps, Adjustable resonance, Magnetism, Character, Dynamics, Artifacts controls, LFO modulation, Envelope Follower modulation, Standalone and AUv3 formats

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GSDSP Quantum Distortion free?

GSDSP Quantum Distortion costs $14.99, with no in-app purchases.

### Is Dub Filter free?

Dub Filter costs $14.99, with no in-app purchases.

### Which has better reviews, GSDSP Quantum Distortion or Dub Filter?

GSDSP Quantum Distortion and Dub Filter are both rated 5.0 out of 5 on the App Store, from 10 and 6 ratings respectively.

### Do GSDSP Quantum Distortion or Dub Filter have ads?

Neither GSDSP Quantum Distortion nor Dub Filter shows ads.

### Which is updated more often, GSDSP Quantum Distortion or Dub Filter?

GSDSP Quantum Distortion ships an update every 5 weeks, and Dub Filter every 15 months. Most recently, GSDSP Quantum Distortion was updated on September 22, 2026 and Dub Filter on September 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*