# Grandmaster Chess Clock vs zChess Clock

The clearest difference is in-app purchases: zChess Clock at none against Grandmaster Chess Clock's 3. zChess Clock also leads on ads (none vs shown). Grandmaster Chess Clock's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price there is nothing between them.

Both are free to download. Grandmaster Chess Clock sells 3 in-app purchases, starting at $4.99 per month. zChess Clock asks for nothing beyond the download.

## The numbers

| Metric | Grandmaster Chess Clock | zChess Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grandmaster-chess-clock/id6746950623/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 days | — |
| Monetization | Ad-supported | — |
| Size | 54 MB | 2 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Aras Atakligan](https://appshunter.io/developer/1819101189) | [Benjamin Zobrist](https://appshunter.io/developer/1511619762) |

## What reviewers say

### Grandmaster Chess Clock

[App page](https://appshunter.io/ios/app/grandmaster-chess-clock/id6746950623)

This app provides precise timing for chess games, supporting various time controls and offering detailed game history tracking. It allows users to record, share, and analyze their games, making it ideal for tournament players and enthusiasts looking to improve their time management.

**Highlights:** Versatile time controls (Rapid, Blitz, Bullet), Customizable time settings with increment/delay, Automatic game recording and detailed statistics, Share and export game records and history, Tournament-ready precision timing, Elegant dark theme and intuitive interface, Multi-language support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clock Pro Monthly | $4.99 | per month |
| Clock Pro Annual | $24.99 | per year |
| Clock Pro Lifetime | $44.99 | one-time |


### zChess Clock

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

**In-app purchases:** none


## Frequently asked questions

### Is Grandmaster Chess Clock free?

Grandmaster Chess Clock is free to download, with in-app purchases available.

### Is zChess Clock free?

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

### Do Grandmaster Chess Clock or zChess Clock have ads?

Grandmaster Chess Clock shows ads; zChess Clock 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.*