GSDSP Quantum Delay Lite vs tapeworm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GSDSP Quantum Delay Lite
This audio effect plugin offers vintage-inspired stereo delay with deep modulation, flexible filtering, and creative timing options. It allows for precise control over echoes, from warm analog sounds to shimmering textures, and integrates an advanced modulation system for unique sound design.
- Vintage-inspired stereo delay
- Deep modulation system
- Flexible filtering
- Creative timing controls
- Precise feedback control
- Crossfeed and Over-Feedback options
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A vintage-inspired delay supercharged with deep modulation, flexible filtering, and creative timing that pushes echoes into new dimensions. This is the free Lite version of Quantum Delay. Enjoy it? Go pro with the full version. Classic Delay, Reinvented Quantum Delay Lite 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 a lowpass filter 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. Modulation Without Limits Quantum Delay Lite integrates our advanced modulation system, letting you modulate nearly anything: delay time, filters, feedback parameters, 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 Lite 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
tapeworm
This music app offers a unique tape delay effect with a "wiggly, dirty" sound. Control delay time by stretching or flicking a virtual tapeworm, with options for manual or random adjustments. It includes analog-modeled saturation, compression, and amplifier stages for a rich audio experience.
- Interactive tape delay time control
- Manual and free modes for delay
- Analog-modeled tape saturation and compression
- Overdrivable feedback
- AUv3 plugin compatibility
- Performative sound design elements
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Tapeworm is a tape echo with a unique method of changing the delay time, and a wiggly, dirty sound. You can set the delay time manually by stretching the worm. The record button will flash to show the current interval. You can exit the fixed time mode and enter free mode by toggling. This lets the delay time change randomly, which you can encourage by flicking the tapeworm around. Double tap to reset, adding a fun performative element to your sound. Feedback can be overdriven. An analog-modeled tape saturation and compression, and amplifier and limiter stage, keep it sounding juicy when it gets loud. Tapeworm is audio unit (AUv3) compatible, meaning you can use it as a plugin in your app of choice like AUM, GarageBand or Logic. We hope you enjoy using tapeworm for music, or just for fun.
Screenshots
Verdict
The clearest difference is rating: GSDSP Quantum Delay Lite at 5.0 against tapeworm's 4.3. GSDSP Quantum Delay Lite also leads on iOS requirement (12.0 vs 17.6). tapeworm's advantage is update cadence (every 2 weeks vs every 2 months) and ratings volume (12 vs 3). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
GSDSP Quantum Delay Lite holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 12 respectively.
GSDSP Quantum Delay Lite ships an update every 2 months, tapeworm every 2 weeks. The most recent releases landed on June 21, 2026 and August 19, 2026 respectively.
| Parameter | GSDSP Quantum Delay Lite | tapeworm |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.3 (12 ratings) |
| Positive reviews | — | 71.4% of reviews |
| Number of ratings | 3 | 12 — better |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 58 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Gustav Scholda | Radii Research |
Customer experience
GSDSP Quantum Delay Lite
tapeworm
In-app purchases
GSDSP Quantum Delay Lite
No in-app purchases
tapeworm
No in-app purchases





