# Tempus vs GSDSP Quantum Delay Lite

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.

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

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.

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.

## The numbers

| Metric | Tempus | GSDSP Quantum Delay Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (9 ratings)](https://appshunter.io/ios/app/tempus-delay-calculator/id1488364362/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gsdsp-quantum-delay-lite/id6757497568/reviews)** |
| Number of ratings | **9** | 3 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 8 MB | 58 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marcos Kohler](https://appshunter.io/developer/1024379665) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### Tempus

[App page](https://appshunter.io/ios/app/tempus-delay-calculator/id1488364362)

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

**In-app purchases:** none


### GSDSP Quantum Delay Lite

[App page](https://appshunter.io/ios/app/gsdsp-quantum-delay-lite/id6757497568)

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:** Vision Pro support

**In-app purchases:** none


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*