# GSDSP Quantum Filter vs AM

The clearest difference is price: AM at Free against GSDSP Quantum Filter's $14.99. GSDSP Quantum Filter's advantage is iOS requirement (13.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

AM is free to download; GSDSP Quantum Filter costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | GSDSP Quantum Filter | AM |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-filter/id6498711920/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Paid | — |
| Size | 77 MB | 31 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gustav Scholda](https://appshunter.io/developer/1642323227) | [RooTale](https://appshunter.io/developer/1851302790) |

## 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


### AM

[App page](https://appshunter.io/ios/app/am-connect/id6762017082)

**In-app purchases:** none


## Frequently asked questions

### Is GSDSP Quantum Filter free?

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

### Is AM free?

AM is free to download, with no in-app purchases.

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

Neither GSDSP Quantum Filter nor AM 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.*