# Pixel Clock vs World

The clearest difference is iOS requirement: Pixel Clock at 15.0 against World's 18.0. On price, ads, in-app purchases and device support 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 | Pixel Clock | World |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | — |
| Size | 79 MB | 9 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [YIMING SHI](https://appshunter.io/developer/1778404172) | [kenshin miyamoto](https://appshunter.io/developer/1672328137) |

## What reviewers say

### Pixel Clock

[App page](https://appshunter.io/ios/app/pixel-clock-grid/id6737881546)

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

**In-app purchases:** none


### World

[App page](https://appshunter.io/ios/app/world-digital-clock/id6753220244)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pixel Clock free?

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

### Is World free?

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

### Do Pixel Clock or World have ads?

Neither Pixel Clock nor World shows ads.

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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.*