# Fast Clock vs Sun TimeZone

The clearest difference is device support: Fast Clock at 2 against Sun TimeZone's —. Fast Clock also leads on iOS requirement (15.6 vs 26.2). On price 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.

## The numbers

| Metric | Fast Clock | Sun TimeZone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (5 ratings)](https://appshunter.io/ios/app/fast-clock/id6448879724/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 2 days | — |
| Monetization | Free | — |
| Size | 5 MB | 5 MB |
| Requires iOS | **15.6** | 26.2 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Kevin Snow](https://appshunter.io/developer/305581830) | [Arshdeep Singh](https://appshunter.io/developer/1879148819) |

## What reviewers say

### Fast Clock

[App page](https://appshunter.io/ios/app/fast-clock/id6448879724)

This application simulates a fast clock for model railroads. It allows for custom logos and maps, and can synchronize with external systems like JMRI or use real-time.

**Highlights:** Model railroad fast clock simulation, Custom logo support, Custom map integration, JMRI time synchronization, Real-time clock option

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

**In-app purchases:** none


### Sun TimeZone

[App page](https://appshunter.io/ios/app/sun-timezone/id6760567372)

**In-app purchases:** none


## Frequently asked questions

### Is Fast Clock free?

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

### Is Sun TimeZone free?

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

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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.*