# Blip Box vs GSDSP Quantum Delay

The clearest difference is price: Blip Box at $5.99 against GSDSP Quantum Delay's $14.99. Blip Box also leads on update cadence (weekly vs every 5 weeks). GSDSP Quantum Delay's advantage is review sentiment (100% vs 90%) and iOS requirement (12.0 vs 15.0). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Blip Box 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 — 4.8 for Blip Box against 4.8 for GSDSP Quantum Delay. Both are backed by a comparable volume of ratings — 20 and 17 respectively. Written reviews are what separate them: 90% of Blip Box's written reviews are positive against 100% of GSDSP Quantum Delay's.

Blip Box ships an update weekly, GSDSP Quantum Delay every 5 weeks. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Blip Box | GSDSP Quantum Delay |
| --- | --- | --- |
| Price | **$5.99** | $14.99 |
| Rating | [4.8 (20 ratings)](https://appshunter.io/ios/app/blip-box-drum-synth/id6452880190/reviews) | [4.8 (17 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-delay/id6469328297/reviews) |
| Number of ratings | **20** | 17 |
| Positive reviews | 90.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 5 weeks |
| Monetization | Paid | Paid |
| Size | 15 MB | 94 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sketch Audio, LLC](https://appshunter.io/developer/1699093348) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### Blip Box

[App page](https://appshunter.io/ios/app/blip-box-drum-synth/id6452880190)

A powerful sixteen-voice drum synthesizer offering a unique digital sound engine inspired by analog and digital synths. It features a touch-friendly interface, complex audio modulation, and versatile effects for creating distinctive electronic music.

**Highlights:** Sixteen-voice drum synthesizer, Complex audio rate modulation, Touch-first control interface, Standalone and AUv3 plugin support, Universal purchase for Apple platforms, MIDI controller compatibility, Pure synthesis engine, no samples

**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 Blip Box free?

Blip Box 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, Blip Box or GSDSP Quantum Delay?

Blip Box and GSDSP Quantum Delay are both rated 4.8 out of 5 on the App Store, from 20 and 17 ratings respectively.

### Do Blip Box or GSDSP Quantum Delay have ads?

Neither Blip Box nor GSDSP Quantum Delay shows ads.

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

Blip Box ships an update weekly, and GSDSP Quantum Delay every 5 weeks. Most recently, Blip Box was updated on October 13, 2026 and GSDSP Quantum Delay on October 9, 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.*