# Clock for Chess vs TetraClock

The clearest difference is in-app purchases: TetraClock at none against Clock for Chess's 1. TetraClock also leads on update cadence (every 2 days vs every 2 weeks) and device support (3 vs 1). Clock for Chess's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. Clock for Chess sells 1 one-off in-app purchase. TetraClock asks for nothing beyond the download.

Clock for Chess ships an update every 2 weeks, TetraClock every 2 days. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Clock for Chess | TetraClock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 3 MB | 6 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kornel Miszczak](https://appshunter.io/developer/1542512370) | [Legal Prompt Inc.](https://appshunter.io/developer/1490746932) |

## What reviewers say

### Clock for Chess

[App page](https://appshunter.io/ios/app/clock-for-chess/id6469359426)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $2.99 | one-time |


### TetraClock

[App page](https://appshunter.io/ios/app/tetraclock-falling-block/id6504890211)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Clock for Chess free?

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

### Is TetraClock free?

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

### Do Clock for Chess or TetraClock have ads?

TetraClock shows ads; Clock for Chess does not.

### Which is updated more often, Clock for Chess or TetraClock?

Clock for Chess ships an update every 2 weeks, and TetraClock every 2 days. Most recently, Clock for Chess was updated on October 15, 2026 and TetraClock on October 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.*