# CLK Wrld vs Atomic Clock App

The clearest difference is price: CLK Wrld at Free against Atomic Clock App's $2.99. Atomic Clock App's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

CLK Wrld is free to download; Atomic Clock App costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | CLK Wrld | Atomic Clock App |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Size | 71 MB | 31 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sumit Zalavadiya](https://appshunter.io/developer/1791692918) | [Gianfranco Antenucci](https://appshunter.io/developer/1875606849) |

## What reviewers say

### CLK Wrld

[App page](https://appshunter.io/ios/app/clk-wrld/id6740799920)

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

**In-app purchases:** none


### Atomic Clock App

[App page](https://appshunter.io/ios/app/atomic-clock-app/id6760158311)

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

**In-app purchases:** none


## Frequently asked questions

### Is CLK Wrld free?

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

### Is Atomic Clock App free?

Atomic Clock App costs $2.99, with no in-app purchases.

### Do CLK Wrld or Atomic Clock App have ads?

CLK Wrld shows ads; Atomic Clock App does not.

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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.*