# GSDSP Quantum Filter vs Absylon

The clearest difference is rating: GSDSP Quantum Filter at 5.0 against Absylon's 4.3. GSDSP Quantum Filter also leads on review sentiment (100% vs 67%). Absylon's advantage is price ($6.99 vs $14.99) and ratings volume (9 vs 3). On ads, in-app purchases, monetization model and device support there is nothing between them.

GSDSP Quantum Filter costs $14.99 and Absylon $6.99 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 4.3. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews point the same way: 100% of GSDSP Quantum Filter's written reviews are positive against 67% of Absylon's.

## The numbers

| Metric | GSDSP Quantum Filter | Absylon |
| --- | --- | --- |
| Price | $14.99 | **$6.99** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-filter/id6498711920/reviews)** | [4.3 (9 ratings)](https://appshunter.io/ios/app/absylon-amp-sim/id6578454515/reviews) |
| Number of ratings | 3 | **9** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Monetization | Paid | Paid |
| Size | 77 MB | 27 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) | [Aurora DSP](https://appshunter.io/developer/1517411434) |

## What reviewers say

### 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


### Absylon

[App page](https://appshunter.io/ios/app/absylon-amp-sim/id6578454515)

This app provides an advanced guitar amplifier simulation specifically designed for extremely low tunings on 8-string guitars. It offers two distinct channels for rhythm and lead playing, along with features like custom IR loading and a built-in metronome.

**Highlights:** Low-tuning 8-string guitar amp simulation, Two channels: Savage (rhythm) and Beast (lead), Custom Impulse Response (IR) loader, 4-knob tone stack, Grind Mode boost, Noise Gate, Built-in metronome and recorder

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GSDSP Quantum Filter free?

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

### Is Absylon free?

Absylon costs $6.99, with no in-app purchases.

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

GSDSP Quantum Filter is rated higher. GSDSP Quantum Filter averages 5.0 out of 5 from 3 ratings, while Absylon averages 4.3 from 9 ratings.

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

Neither GSDSP Quantum Filter nor Absylon shows ads.

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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.*