ERS_EchORek2 vs GSDSP Quantum Delay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ERS_EchORek2
This audio plugin emulates the iconic Binson Echorec2 analog delay, offering a unique, dreamlike, and psychedelic sound. Developed with careful study of original schematics, it provides enhanced controls for musicians seeking a distinctive vintage delay effect.
- Authentic 70's analog delay emulation
- Binson Echorec2 sound
- Enhanced controls
- Psychedelic sound quality
- Vintage delay effect
Read full descriptionHide full description
The ERS EchORek2 analog delay plugin was originally designed and sold by Harrie Munnik and his Dutch company EmptyRoomSystems. DDMF is proud to carry on the legacy by distributing and further developing the set of ERS plugins. The “ERS EchORek2” plug-in has been developed to sound like the Binson Echorec2 delay with enhanced controls. This delay has been used on thousands of recordings worldwide. Starting from the early Pink Floyd albums, its unique sound and benign unpredictability have made it the weapon of choice of musicians who wanted to add a dreamlike, psychedelic quality to their sound. As all ERS plugins, careful study of the original schematics have led to a plugin version that leaves nothing to be desired...
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.
- 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)
Read full descriptionHide 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
Verdict
The clearest difference is rating: GSDSP Quantum Delay at 4.8 against ERS_EchORek2's 4.1. GSDSP Quantum Delay also leads on update cadence (every 5 weeks vs every 26 months). ERS_EchORek2's advantage is price ($9.99 vs $14.99) and iOS requirement (9.3 vs 12.0). On ratings volume, ads, in-app purchases and monetization model 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
ERS_EchORek2 costs $9.99 and GSDSP Quantum Delay $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 4.1. Both are backed by a comparable volume of ratings — 7 and 17 respectively.
ERS_EchORek2 ships an update every 26 months, GSDSP Quantum Delay every 5 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.
| Parameter | ERS_EchORek2 | GSDSP Quantum Delay |
|---|---|---|
| Price | $9.99 — better | $14.99 |
| Rating | 4.1 (7 ratings) | 4.8 (17 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 7 | 17 — better |
| Update frequency | Every 26 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 12.0 |
| Further details — not scored | ||
| Size | 13 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Christian Siedschlag | Gustav Scholda |
Customer experience
ERS_EchORek2
GSDSP Quantum Delay
In-app purchases
ERS_EchORek2
No in-app purchases
GSDSP Quantum Delay
No in-app purchases
Questions
Is ERS_EchORek2 free?
Is GSDSP Quantum Delay free?
Which has better reviews, ERS_EchORek2 or GSDSP Quantum Delay?
Do ERS_EchORek2 or GSDSP Quantum Delay have ads?
Which is updated more often, ERS_EchORek2 or GSDSP Quantum Delay?
Other comparisons















