GSDSP Quantum Delay Lite2026.4 - App Store

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

Version History - New: Add your most-used presets to the new Favourites category for quick access
- Improved Apple Pencil compatibility
- Faster startup time 2026.4 Jun 17 - New: Added smooth functionality to 2D Macro
- Reduced memory usage
- Faster startup time 2026.3 Apr 30 - New: Custom LFO curves can now be saved and loaded across all GS DSP plugins
- New: Custom LFO wide view for more detailed editing
- New: User Manuals for each plugin, access them in the menu: Learn -> User Manual
- Improved stability with Logic Pro
- Fixed an issue where the initial random preset got marked dirty
- Quantum Delay: Added 40 new presets by Jakob Haq
- Quantum Delay/Granulator: Fixed an issue where some preset subcategories were duplicated 2026.2 Apr 15 - New: Modulation Range Info now displays a text representation of the applied modulation range (current / min / max)
- Magic Series: The active curve in the Curve Editor can now be randomized (add random points and/or move existing ones)
- Fixed an issue when switching presets via MIDI Program Change messages (Thanks Maxim)
- Fixed the LFO "Round" wavetable 2026.1 Mar 11 2026.0 Jan 26