Comparison

GSDSP Quantum Delay Lite vs GlassChoir

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Vintage-inspired stereo delay
  • Deep modulation system
  • Flexible filtering
  • Creative timing controls
  • Precise feedback control
  • Crossfeed and Over-Feedback options
Features
Read full description

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

About

GlassChoir

Features
Read full description

Glass Choir turns a sung phrase or short vocal snippet into a shimmering, playable infinite song. Feed it a voice sample, generate a vibe, and perform inside layered harmonies, bass bloom, octave lift, ghost highs, freeze loops, and cinematic space with a small glassy control surface designed for fast musical results.

Screenshots

GSDSP Quantum Delay Lite3 screens
GlassChoir4 screens

Verdict

The call

The clearest difference is price: GSDSP Quantum Delay Lite at Free against GlassChoir's $0.99. GSDSP Quantum Delay Lite also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). GlassChoir's advantage is update cadence (daily vs every 6 weeks). On ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

GSDSP Quantum Delay Lite is free to download; GlassChoir costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

GSDSP Quantum Delay Lite ships an update every 6 weeks, GlassChoir daily. The most recent releases landed on October 25, 2026 and September 21, 2026 respectively.

Scorecard4 real differences · 5 level
GSDSP Quantum Delay Lite versus GlassChoir: the parameters behind the verdict, then further details
ParameterGSDSP Quantum Delay LiteGlassChoir
PriceFree — better$0.99
Rating5.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 6 weeksDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better18.0
Further details — not scored
Size58 MB2 MB
Age rating4+4+
DeveloperGustav ScholdaAusten Allred

In-app purchases

None

GSDSP Quantum Delay Lite

No in-app purchases

None

GlassChoir

No in-app purchases

Questions

Is GSDSP Quantum Delay Lite free?
GSDSP Quantum Delay Lite is free to download, with no in-app purchases.
Is GlassChoir free?
GlassChoir costs $0.99, with no in-app purchases.
Do GSDSP Quantum Delay Lite or GlassChoir have ads?
Neither GSDSP Quantum Delay Lite nor GlassChoir shows ads.
Which is updated more often, GSDSP Quantum Delay Lite or GlassChoir?
GSDSP Quantum Delay Lite ships an update every 6 weeks, and GlassChoir daily. Most recently, GSDSP Quantum Delay Lite was updated on October 25, 2026 and GlassChoir on September 21, 2026.

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