DroneLab vs GSDSP Quantum Delay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DroneLab
Generate evolving ambient music with three parallel audio sources and unique sound effects. Save and export your creations for use in music or video projects, or use it for improvisation and practice.
- Three parallel continuous audio sources
- Custom sound effects
- Preset selection and customization
- Stereo audio export up to 96KHz
- Real-time recording
- Improvisation and experimentation tool
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DroneLab creates slowly shifting musical soundscapes. Control three continuous audio sources running in parallel, each with its own rate of shifting intensity. Expand the soundscape with unusual sound effects crafted specifically for DroneLab. Get going quickly by selecting one of the included presets. Go further by selecting and customizing the sound sources, and save your own presets to the list. Create soundscapes for your music and video projects: - Export a stereo audio file with your current settings, at sample rates up to 96KHz. On newer devices, exports occur faster than real time. - Or, you can record in real time, capturing all the changes you make to the sounds as you go. DroneLab is great for improvisation and experimentation: - Explore the melodic side of your instrument in a fun, relaxing setting. - Warm up before practicing more difficult material. - Explore sounds and articulations that aren't part of your usual repertoire. Please visit us at dronelab.app for videos, more information and support.
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)
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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 price: DroneLab at $1.99 against GSDSP Quantum Delay's $14.99. GSDSP Quantum Delay's advantage is review sentiment (100% vs 70%) and rating (4.8 vs 4.4). 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
DroneLab costs $1.99 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 4.4. Both are backed by a comparable volume of ratings — 20 and 17 respectively. Written reviews point the same way: 70% of DroneLab's written reviews are positive against 100% of GSDSP Quantum Delay's.
DroneLab ships an update every 4 months, GSDSP Quantum Delay every 5 weeks. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.
| Parameter | DroneLab | GSDSP Quantum Delay |
|---|---|---|
| Price | $1.99 — better | $14.99 |
| Rating | 4.4 (20 ratings) | 4.8 (17 ratings) — better |
| Positive reviews | 70.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 20 — better | 17 |
| Update frequency | Every 4 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 | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Jon Lukas | Gustav Scholda |
Customer experience
DroneLab
GSDSP Quantum Delay
In-app purchases
DroneLab
No in-app purchases
GSDSP Quantum Delay
No in-app purchases








