# GSDSP Quantum Delay vs Stellarvox

The clearest difference is update cadence: GSDSP Quantum Delay at every 5 weeks against Stellarvox's every 5 months. GSDSP Quantum Delay also leads on iOS requirement (12.0 vs 15.0). Stellarvox's advantage is rating (5.0 vs 4.8) and price ($11.99 vs $14.99). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

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

Stellarvox holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 17 and 11 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

GSDSP Quantum Delay ships an update every 5 weeks, Stellarvox every 5 months. The most recent releases landed on September 22, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | GSDSP Quantum Delay | Stellarvox |
| --- | --- | --- |
| Price | $14.99 | **$11.99** |
| Rating | [4.8 (17 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-delay/id6469328297/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/stellarvox/id6472060413/reviews)** |
| Number of ratings | **17** | 11 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Monetization | Paid | Paid |
| Size | 94 MB | 4 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gustav Scholda](https://appshunter.io/developer/1642323227) | [Igor Vasiliev](https://appshunter.io/developer/424401626) |

## What reviewers say

### GSDSP Quantum Delay

[App page](https://appshunter.io/ios/app/gsdsp-quantum-delay/id6469328297)

This app offers a vintage-inspired stereo delay effect with advanced modulation, flexible filtering, and precise timing controls. It allows users to sculpt unique echo textures, from warm analog sounds to complex, evolving soundscapes.

**Highlights:** Vintage-inspired stereo delay, Deep modulation system, Flexible filtering (LPF, HPF, BPF), Precise timing controls (BPM, ms), Switchable stereo/dual mono modes, Advanced modulation sources (LFO, Random, Envelope)

**Features:** Vision Pro support

**In-app purchases:** none


### Stellarvox

[App page](https://appshunter.io/ios/app/stellarvox/id6472060413)

Design immersive ambient soundscapes with a hybrid reverb and artificial space designer. Create lush textures, deep spaces, and whispering backgrounds for electronic, experimental, and sound design projects. Offers intuitive controls and inspiring presets for quick, high-quality results.

**Highlights:** Hybrid reverb with artificial space designer, Algorithmic reflections tail processing, Dynamic timbre changes over time, Geometry and dimension control, Factory presets and random feature, MIDI learn support, Standalone and AUv3 module

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GSDSP Quantum Delay free?

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

### Is Stellarvox free?

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

### Which has better reviews, GSDSP Quantum Delay or Stellarvox?

Stellarvox is rated higher. GSDSP Quantum Delay averages 4.8 out of 5 from 17 ratings, while Stellarvox averages 5.0 from 11 ratings.

### Do GSDSP Quantum Delay or Stellarvox have ads?

Neither GSDSP Quantum Delay nor Stellarvox shows ads.

### Which is updated more often, GSDSP Quantum Delay or Stellarvox?

GSDSP Quantum Delay ships an update every 5 weeks, and Stellarvox every 5 months. Most recently, GSDSP Quantum Delay was updated on September 22, 2026 and Stellarvox on September 7, 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.*