Comparison

Tempus vs GSDSP Quantum Delay Lite

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

Head to head
About

Tempus

Calculate delay times and sample re-pitch amounts with a tap-tempo metronome. Preview delay sounds and determine BPM changes for your DAW. This tool helps musicians fine-tune audio effects.

Highlights
  • Tap-tempo metronome
  • Specify beat count for metronome
  • View and preview delay times
  • Calculate sample re-pitch amounts
  • Calculate BPM changes
  • Supports Re-Pitch Warp modes
Read full description

Tempus is a tool for calculating Delay Times and sample Re-Pitch amounts / BPMs! - Tap-tempo Metronome with the ability to specify the # of beats - View Delay Times & preview what each Delay sounds like - Calculate sample Re-Pitch amounts / BPMs when changing the BPM in your DAW & using Re-Pitch Warp modes

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

Screenshots

Tempus4 screens
GSDSP Quantum Delay Lite3 screens

Verdict

The call

The clearest difference is rating: GSDSP Quantum Delay Lite at 5.0 against Tempus's 4.6. Tempus's advantage is ratings volume (9 vs 3). On price, update cadence, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

GSDSP Quantum Delay Lite holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 9 and 3 respectively.

UpkeepUpdate frequency

Tempus ships an update every 5 weeks, GSDSP Quantum Delay Lite every 6 weeks. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

Scorecard2 real differences · 8 level
Tempus versus GSDSP Quantum Delay Lite: the parameters behind the verdict, then further details
ParameterTempusGSDSP Quantum Delay Lite
PriceFreeFree
Rating4.6 (9 ratings)5.0 (3 ratings) — better
Positive reviews83.3% of reviews—
Number of ratings9 — better3
Update frequencyEvery 5 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size8 MB58 MB
Age rating4+4+
DeveloperMarcos KohlerGustav Scholda

Customer experience

Tempus

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

GSDSP Quantum Delay Lite

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Tempus

No in-app purchases

None

GSDSP Quantum Delay Lite

No in-app purchases

Questions

Is Tempus free?
Tempus is free to download, with no in-app purchases.
Is GSDSP Quantum Delay Lite free?
GSDSP Quantum Delay Lite is free to download, with no in-app purchases.
Which has better reviews, Tempus or GSDSP Quantum Delay Lite?
GSDSP Quantum Delay Lite is rated higher. Tempus averages 4.6 out of 5 from 9 ratings, while GSDSP Quantum Delay Lite averages 5.0 from 3 ratings.
Do Tempus or GSDSP Quantum Delay Lite have ads?
Neither Tempus nor GSDSP Quantum Delay Lite shows ads.
Which is updated more often, Tempus or GSDSP Quantum Delay Lite?
Tempus ships an update every 5 weeks, and GSDSP Quantum Delay Lite every 6 weeks. Most recently, Tempus was updated on October 7, 2026 and GSDSP Quantum Delay Lite on October 20, 2026.

Other comparisons