Sliver vs GSDSP Quantum Delay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sliver
Create unique sonic textures and playable instruments from any audio. Manipulate sound with real-time resizable clips, advanced automation, and physics-based XY pads. Supports extensive import/export and MIDI control.
- Real-time manipulation slivers
- Independent audio channels
- Full automation control
- Physics-based XY pads
- Touchable waveform scrubbing
- Extensive effects chain
- MIDI learn and control
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Sliver is a powerful tool for soundscape and sonic texture creation. Working beautifully with any audio content... melodic, rhythmic, noise, or otherwise, Sliver is well suited for a broad range of project types including: Soundscapes Ambient Drone Glitch Noise Pads Sound Design / Sound Effects Unique Sonic Textures Cinematic Sound Elements Creating a playable instrument from any sound. The core of Sliver is the 4 real-time resizable clips (slivers) that can be moved around the waveform. Each sliver has it’s own channel with independent volume, pan, filter, and sliver size. These controls can be set in motion with Sliver's automation engine. Sliver uses a real-time automation system to movement in your textures. This system also allows for override to be able to shape the ongoing captured performance. The filters and size windows are controlled by XY pads, giving Sliver a natural playability, creating a new type of instrument. Touching along the waveform places, moves, and sizes the slivers, allowing you to intuitively scrub the waveform with a variable loop size. A chain of effects assigned to XY Control pads allows you to shape and mangle the sounds produced by the slivers. You can Automate every control. Sliver uses Apples UIKit Dynamics to create physics on the XY Pads, allowing customized settings for the controls to shape the sound randomly with physics. Sliver supports Audiobus, sitting in an input slot. You can import samples via AudioShare import or Audiocopy. You can resample, record your own samples via the Mic, or do both at once. This app uses Background Audio and Records from the Mic. You will see a red bar when placing the app in the background. Sliver supports MIDI learn and is fully controllable from Virtual, Network, and MIDI hardware. Make some noises, mangle some sounds, create your own soundscape. Features: 4 Real-time Manipulation Slivers 4 Independent Audio Channels Full Automation Control Apple UIKit Dynamics Physics Controls 8 X/Y Pad control Touchable Waveform Low Pass Filter Temp Sync'ed Delay Reverb Realtime Pitch-shifting without effecting Time Domain (TimeStretch) BitCrush Saturation Audiobus Support AudioShare Import/Export Email Import/Export (Sounds and Presets) AudioCopy/Paste Sample Recording Resampling Playable Virtual Keyboard MIDI (Virtual, Network, or Hardware) MIDI Learn 40+ Factory Samples 60 Factory Presets
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: Sliver at $5.99 against GSDSP Quantum Delay's $14.99. Sliver also leads on iOS requirement (8.0 vs 12.0). GSDSP Quantum Delay's advantage is review sentiment (100% vs 75%) and device support (3 vs 1). On rating, ratings volume, update cadence and ads 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
Sliver costs $5.99 and GSDSP Quantum Delay $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.7 for Sliver against 4.8 for GSDSP Quantum Delay. Both are backed by a comparable volume of ratings — 10 and 17 respectively. Written reviews are what separate them: 75% of Sliver's written reviews are positive against 100% of GSDSP Quantum Delay's.
Sliver ships an update every 6 weeks, GSDSP Quantum Delay every 5 weeks. The most recent releases landed on October 7, 2026 and September 22, 2026 respectively.
| Parameter | Sliver | GSDSP Quantum Delay |
|---|---|---|
| Price | $5.99 — better | $14.99 |
| Rating | 4.7 (10 ratings) | 4.8 (17 ratings) — better |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 10 | 17 — better |
| Update frequency | Every 6 weeks | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 33 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Alex Matheu | Gustav Scholda |
Customer experience
Sliver
GSDSP Quantum Delay
In-app purchases
Sliver
No in-app purchases
GSDSP Quantum Delay
No in-app purchases









