# GSDSP Quantum Filter vs Midiary

The clearest difference is price: Midiary at $3.99 against GSDSP Quantum Filter's $14.99. Midiary also leads on update cadence (every 9 days vs every 5 weeks). GSDSP Quantum Filter's advantage is iOS requirement (12.0 vs 17.0). On rating, ratings volume, ads and in-app purchases there is nothing between them.

GSDSP Quantum Filter costs $14.99 and Midiary $3.99 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 Filter against 5.0 for Midiary. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

GSDSP Quantum Filter ships an update every 5 weeks, Midiary every 9 days. The most recent releases landed on September 22, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | GSDSP Quantum Filter | Midiary |
| --- | --- | --- |
| Price | $14.99 | **$3.99** |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-filter/id6498711920/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/midiary-midi-file-studio/id6793514991/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 9 days** |
| Monetization | Paid | Paid |
| Size | 77 MB | 7 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gustav Scholda](https://appshunter.io/developer/1642323227) | [Robert Corbin](https://appshunter.io/developer/1890247992) |

## 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


### Midiary

[App page](https://appshunter.io/ios/app/midiary-midi-file-studio/id6793514991)

This app allows musicians to edit and refine MIDI files by extracting and applying groove information, adjusting note parameters, and inspecting file structure. It preserves the original file while offering robust editing and auditioning capabilities.

**Highlights:** Groove extraction and application, Note pitch, velocity, and timing adjustment, Offline MIDI file editing, Undo/redo functionality, File inspection and auditioning, Export MIDI and CSV formats

**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 Midiary free?

Midiary costs $3.99, with no in-app purchases.

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

GSDSP Quantum Filter and Midiary are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

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

Neither GSDSP Quantum Filter nor Midiary shows ads.

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

GSDSP Quantum Filter ships an update every 5 weeks, and Midiary every 9 days. Most recently, GSDSP Quantum Filter was updated on September 22, 2026 and Midiary on October 8, 2026.

---

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