# World Clock vs Flip Clock Simple

The clearest difference is ads: Flip Clock Simple at none against World Clock's shown. Flip Clock Simple also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). 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 | World Clock | Flip Clock Simple |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Size | 4 MB | 16 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Junpei Okumura](https://appshunter.io/developer/6773895881) | [Sumit Sen](https://appshunter.io/developer/6790905322) |

## What reviewers say

### World Clock

[App page](https://appshunter.io/ios/app/world-clock-time-zones/id6773895879)

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

**In-app purchases:** none


### Flip Clock Simple

[App page](https://appshunter.io/ios/app/flip-clock-simple/id6802782484)

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

**In-app purchases:** none


## Frequently asked questions

### Is World Clock free?

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

### Is Flip Clock Simple free?

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

### Do World Clock or Flip Clock Simple have ads?

World Clock shows ads; Flip Clock Simple 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.*