# GS vs GSDSP Quantum Filter

The clearest difference is rating: GSDSP Quantum Filter at 5.0 against GS's 4.5. GSDSP Quantum Filter also leads on update cadence (every 5 weeks vs every 17 months). GS's advantage is price ($11.99 vs $14.99) and ratings volume (11 vs 3). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

GS costs $11.99 and GSDSP Quantum Filter $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GSDSP Quantum Filter holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 11 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

GS ships an update every 17 months, GSDSP Quantum Filter every 5 weeks. The most recent releases landed on October 11, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | GS | GSDSP Quantum Filter |
| --- | --- | --- |
| Price | **$11.99** | $14.99 |
| Rating | [4.5 (11 ratings)](https://appshunter.io/ios/app/gs-201/id1643866815/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-filter/id6498711920/reviews)** |
| Number of ratings | **11** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 10 MB | 77 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Genuine Soundware](https://appshunter.io/developer/1560880481) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### GS

[App page](https://appshunter.io/ios/app/gs-201/id1643866815)

This audio plugin emulates the classic Space Echo tape delay effect for iOS devices. It aims to replicate the authentic sound and quirks of the original hardware, offering a vintage delay experience.

**Highlights:** AUv3 plugin for iOS, Emulates Space Echo tape delay, Authentic vintage sound, Basic controls mirroring original hardware, iPad platform compatibility

**In-app purchases:** none


### GSDSP Quantum Filter

[App page](https://appshunter.io/ios/app/gsdsp-quantum-filter/id6498711920)

This audio effect plugin offers analog-modeled filters with flexible routing and dynamic modulation for creative sound design. It provides extensive control over tone shaping and complex filtering with various filter types and configurations.

**Highlights:** Analog-modelled filters, 11 filter modes, Series and parallel routing, Dynamic modulation support, Stereo and dual mono modes, MIDI control integration

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GS free?

GS costs $11.99, with no in-app purchases.

### Is GSDSP Quantum Filter free?

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

### Which has better reviews, GS or GSDSP Quantum Filter?

GSDSP Quantum Filter is rated higher. GS averages 4.5 out of 5 from 11 ratings, while GSDSP Quantum Filter averages 5.0 from 3 ratings.

### Do GS or GSDSP Quantum Filter have ads?

Neither GS nor GSDSP Quantum Filter shows ads.

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

GS ships an update every 17 months, and GSDSP Quantum Filter every 5 weeks. Most recently, GS was updated on October 11, 2026 and GSDSP Quantum Filter on September 22, 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.*