# Chess Clock vs Doctor Chess

The clearest difference is update cadence: Chess Clock at every 2 days against Doctor Chess's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

Chess Clock ships an update every 2 days, Doctor Chess every 5 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Chess Clock | Doctor Chess |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 weeks |
| Monetization | — | Free |
| Size | 1 MB | 20 MB |
| Requires iOS | **14.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Serhii Nasinnyk](https://appshunter.io/developer/1546055849) | [Lim Sangjin](https://appshunter.io/developer/1437057653) |

## What reviewers say

### Chess Clock

[App page](https://appshunter.io/ios/app/chess-clock/id1552000260)

**Features:** macOS Compatibility

**In-app purchases:** none


### Doctor Chess

[App page](https://appshunter.io/ios/app/doctor-chess/id6766081915)

This app offers a comprehensive chess experience adhering to official FIDE rules, including special moves and draw conditions. Play against AI at various skill levels or challenge friends online without any sign-up or ads.

**Highlights:** Full FIDE rule set enforcement, Five AI difficulty tiers, Online 1v1 matches via Game Center, No sign-up required, Ad-free and tracking-free, 40 language support

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

**In-app purchases:** none


## Frequently asked questions

### Is Chess Clock free?

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

### Is Doctor Chess free?

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

### Do Chess Clock or Doctor Chess have ads?

Neither Chess Clock nor Doctor Chess shows ads.

### Which is updated more often, Chess Clock or Doctor Chess?

Chess Clock ships an update every 2 days, and Doctor Chess every 5 weeks. Most recently, Chess Clock was updated on November 3, 2026 and Doctor Chess on November 5, 2026.

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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.*