# See through Clock vs ZoneSync

The clearest difference is in-app purchases: See through Clock at none against ZoneSync's 2. See through Clock also leads on iOS requirement (15.8.3 vs 17.6). ZoneSync's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. ZoneSync sells 2 in-app purchases, starting at $2.99 per month. See through Clock asks for nothing beyond the download.

## The numbers

| Metric | See through Clock | ZoneSync |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Size | 35 MB | 12 MB |
| Requires iOS | **15.8.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Murat Can CICEK](https://appshunter.io/developer/1775880707) |

## What reviewers say

### See through Clock

[App page](https://appshunter.io/ios/app/see-through-clock/id6737430785)

**Features:** macOS Compatibility

**In-app purchases:** none


### ZoneSync

[App page](https://appshunter.io/ios/app/zonesync-world-clock-widget/id6759647603)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZoneSync Premium | $2.99 | per month |
| ZoneSync Premium | $24.99 | per year |


## Frequently asked questions

### Is See through Clock free?

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

### Is ZoneSync free?

ZoneSync is free to download, with in-app purchases available.

### Do See through Clock or ZoneSync have ads?

See through Clock shows ads; ZoneSync 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.*