Comparison

KORG KONNECT Upgrade Tool vs GSDSP Quantum Delay

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

KORG KONNECT Upgrade Tool

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
Read full description

Update of KONNECT is done via dedicated iOS application. Please download this newly released "KONNECT Upgrade Tool App" to your smartphone and use it to upgrade KONNECT. For the updating procedure, follow the on-screen instructions of the application.

About

GSDSP Quantum Delay

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
Read full description

A vintage-inspired delay supercharged with deep modulation, flexible filtering, and creative timing that pushes echoes into new dimensions. Classic Delay, Reinvented Quantum Delay takes the charm of a vintage stereo delay and fuses it with our next-level modulation system. Switch between the warm character of Tape mode and the pristine clarity of Fade mode, lock to BPM (including 5-tuplets) or dial in precise times in milliseconds. Use the Fine control for subtle push-and-pull micro-timing — or modulate your delay lines in ways traditional delays could only dream of. Sculpted Echoes Shape your repeats with switchable lowpass, highpass, and bandpass filters placed directly in the feedback path. Add modulation to create evolving tones, gentle movement, or drifting, frequency-shifting echoes. From warm analog-style rolls to shimmering, swirling textures, it’s all there. Feedback with Precision Control your delay tail behavior using either traditional % feedback or our modern dB-per-second decay system — ideal for predictable, musical decay even when the feedback path becomes complex. Enable Crossfeed for classic ping-pong stereo bounce, or push into Over-Feedback to create dense, self-building echoes that drift toward infinity. Stereo or Dual Mono Every section of Quantum Delay — delay, filter, and feedback — can switch between stereo and dual mono modes. Create tight, controlled stereo images or break them apart for wide, offset, unpredictable spaces. Dual mono modulation unlocks complex stereo interplay and beautifully asymmetric echoes. Modulation Without Limits Quantum Delay integrates our advanced modulation system, letting you modulate nearly anything: delay time, filters, feedback parameters, stereo controls, and more. Use LFOs, Random Generators, 2D modulators, Envelope Followers, Macros, and even chaotic systems to push your echoes far beyond traditional delay behavior. Or use our parameter randomisation feature to explore the plugin’s sound at random. Quantum Delay is an AUv3 audio effect plugin compatible with Logic Pro, AUM, Cubasis, GarageBand and many more. A Desktop version is also available for Windows and macOS (VST3 / AU / AAX). More information here: https://gs-dsp.com/products

Screenshots

KORG KONNECT Upgrade Tool4 screens
GSDSP Quantum Delay3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

Scorecard5 real differences · 5 level
KORG KONNECT Upgrade Tool versus GSDSP Quantum Delay: the parameters behind the verdict, then further details
ParameterKORG KONNECT Upgrade ToolGSDSP Quantum Delay
PriceFree — better$14.99
Rating3.0 (2 ratings)4.8 (16 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings216 — better
Update frequency—Every 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better13.0
Further details — not scored
Size6 MB94 MB
Age rating4+4+
DeveloperKORG INC.Gustav Scholda

Customer experience

KORG KONNECT Upgrade Tool

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

GSDSP Quantum Delay

All ratings17 ratings
Positive94.1%
Neutral0.0%
Negative5.9%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

KORG KONNECT Upgrade Tool

No in-app purchases

None

GSDSP Quantum Delay

No in-app purchases

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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