# 4 vs Chess Clock

The clearest difference is in-app purchases: 4 at none against Chess Clock's 1. 4 also leads on update cadence (daily vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Chess Clock sells 1 one-off in-app purchase. 4 asks for nothing beyond the download.

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

## The numbers

| Metric | 4 | Chess Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Size | 2 MB | 14 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [6ix USA Inc](https://appshunter.io/developer/1648893338) | [Damir Stuhec](https://appshunter.io/developer/1161505919) |

## What reviewers say

### 4

[App page](https://appshunter.io/ios/app/4-player-chess/id6779902022)

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

**In-app purchases:** none


### Chess Clock

[App page](https://appshunter.io/ios/app/chess-clock-flag/id6790894606)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flag Pro | $4.99 | one-time |


## Frequently asked questions

### Is 4 free?

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

### Is Chess Clock free?

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

### Do 4 or Chess Clock have ads?

Neither 4 nor Chess Clock shows ads.

### Which is updated more often, 4 or Chess Clock?

4 ships an update daily, and Chess Clock every 2 weeks. Most recently, 4 was updated on October 5, 2026 and Chess Clock on October 15, 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.*