# zChess Clock vs Double Tap 10+

The clearest difference is in-app purchases: zChess Clock at none against Double Tap 10+'s 1. Double Tap 10+'s advantage is iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Double Tap 10+ sells 1 one-off in-app purchase. zChess Clock asks for nothing beyond the download.

## The numbers

| Metric | zChess Clock | Double Tap 10+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Daily |
| Size | 2 MB | 1 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Benjamin Zobrist](https://appshunter.io/developer/1511619762) | [Takayuki Hamuro](https://appshunter.io/developer/1875707249) |

## What reviewers say

### zChess Clock

[App page](https://appshunter.io/ios/app/zchess-clock/id6754953115)

**In-app purchases:** none


### Double Tap 10+

[App page](https://appshunter.io/ios/app/double-tap-10-plus/id6761082183)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Double Tap 10+ Pro | $1.99 | one-time |


## Frequently asked questions

### Is zChess Clock free?

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

### Is Double Tap 10+ free?

Double Tap 10+ is free to download, with in-app purchases available.

### Do zChess Clock or Double Tap 10+ have ads?

Neither zChess Clock nor Double Tap 10+ 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.*