# Modern Chess Clock vs Chess Clock (Timer)

The clearest difference is in-app purchases: Modern Chess Clock at none against Chess Clock (Timer)'s 1. Modern Chess Clock also leads on update cadence (every 10 days vs every 18 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Modern Chess Clock ships an update every 10 days, Chess Clock (Timer) every 18 months. The most recent releases landed on June 10, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Modern Chess Clock | Chess Clock (Timer) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 18 months |
| Size | 5 MB | 30 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Nurullah Bilgin](https://appshunter.io/developer/1638320664) | [Quang Tri Mai Nguyen](https://appshunter.io/developer/1626809833) |

## What reviewers say

### Modern Chess Clock

[App page](https://appshunter.io/ios/app/modern-chess-clock/id1638320662)

**Features:** macOS Compatibility

**In-app purchases:** none


### Chess Clock (Timer)

[App page](https://appshunter.io/ios/app/chess-clock-timer/id6461047427)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove all ads | $0.99 | one-time |


## Frequently asked questions

### Is Modern Chess Clock free?

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

### Is Chess Clock (Timer) free?

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

### Do Modern Chess Clock or Chess Clock (Timer) have ads?

Neither Modern Chess Clock nor Chess Clock (Timer) shows ads.

### Which is updated more often, Modern Chess Clock or Chess Clock (Timer)?

Modern Chess Clock ships an update every 10 days, and Chess Clock (Timer) every 18 months. Most recently, Modern Chess Clock was updated on June 10, 2026 and Chess Clock (Timer) on September 10, 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.*