# Unix Timer vs Custom JS & CSS for Safari

The clearest difference is price: Unix Timer at Free against Custom JS & CSS for Safari's $2.99. Unix Timer also leads on update cadence (every 3 days vs monthly). Custom JS & CSS for Safari's advantage is chart position (#37 vs unranked) and device support (4 vs 2). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Unix Timer is free to download; Custom JS & CSS for Safari costs $2.99 up front. 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 Unix Timer against 5.0 for Custom JS & CSS for Safari. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Unix Timer ships an update every 3 days, Custom JS & CSS for Safari monthly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Unix Timer | Custom JS & CSS for Safari |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/unix-timer/id6748864910/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/custom-js-and-css-for-safari/id6776793703/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Monthly |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#37** |
| Size | 1 MB | 10 MB |
| Requires iOS | 18.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Moloney](https://appshunter.io/developer/1263277493) | [Alfredo Grassau](https://appshunter.io/developer/1564157928) |

## What reviewers say

### 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


### Custom JS & CSS for Safari

[App page](https://appshunter.io/ios/app/custom-js-and-css-for-safari/id6776793703)

**Currently charting:** #37 Top Paid · Developer Tools (US App Store)

Personalize your web browsing experience by injecting custom JavaScript and CSS into any website. Automate tasks, apply visual tweaks, and manage userscripts directly within Safari.

**Highlights:** Add custom JavaScript, Add custom CSS, Site-specific rules, Userscript manager, iCloud sync, Privacy-first design

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Unix Timer free?

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

### Is Custom JS & CSS for Safari free?

Custom JS & CSS for Safari costs $2.99, with no in-app purchases.

### Which has better reviews, Unix Timer or Custom JS & CSS for Safari?

Unix Timer and Custom JS & CSS for Safari are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Unix Timer or Custom JS & CSS for Safari have ads?

Neither Unix Timer nor Custom JS & CSS for Safari shows ads.

### Which is updated more often, Unix Timer or Custom JS & CSS for Safari?

Unix Timer ships an update every 3 days, and Custom JS & CSS for Safari monthly. Most recently, Unix Timer was updated on October 24, 2026 and Custom JS & CSS for Safari on October 31, 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.*