# CheckTimeYo vs Sundial World Clock

CheckTimeYo and Sundial World Clock are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | CheckTimeYo | Sundial World Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 12 MB | 0 MB |
| Requires iOS | 17.4 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Masayoshi Ueda](https://appshunter.io/developer/1688525453) | [Linh Phan Nhat Khanh](https://appshunter.io/developer/1777727575) |

## What reviewers say

### CheckTimeYo

[App page](https://appshunter.io/ios/app/checktimeyo/id6504262821)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sundial World Clock

[App page](https://appshunter.io/ios/app/sundial-world-clock/id6771688048)

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

**In-app purchases:** none


## Frequently asked questions

### Is CheckTimeYo free?

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

### Is Sundial World Clock free?

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

### Do CheckTimeYo or Sundial World Clock have ads?

Neither CheckTimeYo nor Sundial World Clock shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*