# Sliver vs GSDSP Quantum Delay

The clearest difference is price: Sliver at $5.99 against GSDSP Quantum Delay's $14.99. Sliver also leads on iOS requirement (8.0 vs 12.0). GSDSP Quantum Delay's advantage is review sentiment (100% vs 75%) and device support (3 vs 1). On rating, ratings volume, update cadence and ads there is nothing between them.

Sliver costs $5.99 and GSDSP Quantum Delay $14.99 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 — 4.7 for Sliver against 4.8 for GSDSP Quantum Delay. Both are backed by a comparable volume of ratings — 10 and 17 respectively. Written reviews are what separate them: 75% of Sliver's written reviews are positive against 100% of GSDSP Quantum Delay's.

Sliver ships an update every 6 weeks, GSDSP Quantum Delay every 5 weeks. The most recent releases landed on October 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Sliver | GSDSP Quantum Delay |
| --- | --- | --- |
| Price | **$5.99** | $14.99 |
| Rating | [4.7 (10 ratings)](https://appshunter.io/ios/app/sliver/id789010140/reviews) | **[4.8 (17 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-delay/id6469328297/reviews)** |
| Number of ratings | 10 | **17** |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 33 MB | 94 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alex Matheu](https://appshunter.io/developer/407790501) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### Sliver

[App page](https://appshunter.io/ios/app/sliver/id789010140)

Create unique sonic textures and playable instruments from any audio. Manipulate sound with real-time resizable clips, advanced automation, and physics-based XY pads. Supports extensive import/export and MIDI control.

**Highlights:** Real-time manipulation slivers, Independent audio channels, Full automation control, Physics-based XY pads, Touchable waveform scrubbing, Extensive effects chain, MIDI learn and control

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Sliver free?

Sliver costs $5.99, with no in-app purchases.

### Is GSDSP Quantum Delay free?

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

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

GSDSP Quantum Delay is rated higher. Sliver averages 4.7 out of 5 from 10 ratings, while GSDSP Quantum Delay averages 4.8 from 17 ratings.

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

Neither Sliver nor GSDSP Quantum Delay shows ads.

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

Sliver ships an update every 6 weeks, and GSDSP Quantum Delay every 5 weeks. Most recently, Sliver was updated on October 7, 2026 and GSDSP Quantum Delay 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.*