# PSRayTracing vs Unix Timer

The clearest difference is update cadence: Unix Timer at every 3 days against PSRayTracing's every 30 months. On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for PSRayTracing against 5.0 for Unix Timer. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

PSRayTracing ships an update every 30 months, Unix Timer every 3 days. The most recent releases landed on September 7, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | PSRayTracing | Unix Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/psraytracing/id6468944135/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/unix-timer/id6748864910/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 29 MB | 1 MB |
| Requires iOS | **17** | 18.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Benjamin Summerton](https://appshunter.io/developer/1711000761) | [Andrew Moloney](https://appshunter.io/developer/1263277493) |

## What reviewers say

### PSRayTracing

[App page](https://appshunter.io/ios/app/psraytracing/id6468944135)

This application provides a graphical interface for a ray tracing engine, designed to render images faster than reference code. It includes features like threading and render progress visualization, based on "Ray Tracing in One Weekend" books.

**Highlights:** GUI frontend for ray tracing, Faster rendering than reference code, Threading support, Render progress visualization, Toggle-able features, Based on "Ray Tracing in One Weekend"

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Unix Timer

[App page](https://appshunter.io/ios/app/unix-timer/id6748864910)

Instantly access the current Unix timestamp with a live, full-screen clock. Customize the display with animated themes and colors. This native iOS app is designed for developers needing a fast and accurate timestamp tool.

**Highlights:** Instant timestamp copy, Full-screen live clock, Animated themes and colors, Swipe to change theme, iPhone and iPad support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PSRayTracing free?

PSRayTracing is free to download, with no in-app purchases.

### Is Unix Timer free?

Unix Timer is free to download, with no in-app purchases.

### Which has better reviews, PSRayTracing or Unix Timer?

PSRayTracing and Unix Timer are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do PSRayTracing or Unix Timer have ads?

Neither PSRayTracing nor Unix Timer shows ads.

### Which is updated more often, PSRayTracing or Unix Timer?

PSRayTracing ships an update every 30 months, and Unix Timer every 3 days. Most recently, PSRayTracing was updated on September 7, 2026 and Unix Timer on September 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.*