# KORG KONNECT Upgrade Tool vs GSDSP Quantum Delay

The clearest difference is price: KORG KONNECT Upgrade Tool at Free against GSDSP Quantum Delay's $14.99. KORG KONNECT Upgrade Tool also leads on iOS requirement (9.0 vs 13.0). GSDSP Quantum Delay's advantage is rating (4.8 vs 3.0) and ratings volume (16 vs 2). On ads, in-app purchases and device support there is nothing between them.

KORG KONNECT Upgrade Tool is free to download; GSDSP Quantum Delay costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GSDSP Quantum Delay holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: GSDSP Quantum Delay has 16 ratings behind it against 2, so its average is the more settled of the two.

## The numbers

| Metric | KORG KONNECT Upgrade Tool | GSDSP Quantum Delay |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/korg-konnect-upgrade-tool/id1366167892/reviews) | **[4.8 (16 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-delay/id6469328297/reviews)** |
| Number of ratings | 2 | **16** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 weeks |
| Monetization | **Free** | Paid |
| Size | 6 MB | 94 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KORG INC.](https://appshunter.io/developer/363714046) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### KORG KONNECT Upgrade Tool

[App page](https://appshunter.io/ios/app/korg-konnect-upgrade-tool/id1366167892)

This dedicated iOS application is used to update a specific music device. Download it to your smartphone and follow the on-screen instructions to complete the upgrade process.

**Highlights:** Device firmware updates, On-screen instructions, Smartphone integration, Dedicated upgrade tool

**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 KORG KONNECT Upgrade Tool free?

KORG KONNECT Upgrade Tool is free to download, 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, KORG KONNECT Upgrade Tool or GSDSP Quantum Delay?

GSDSP Quantum Delay is rated higher. KORG KONNECT Upgrade Tool averages 3.0 out of 5 from 2 ratings, while GSDSP Quantum Delay averages 4.8 from 16 ratings.

### Do KORG KONNECT Upgrade Tool or GSDSP Quantum Delay have ads?

Neither KORG KONNECT Upgrade Tool nor GSDSP Quantum Delay 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.*