# KhmerChess Ouk Chaktrang vs Ouk 3D

The clearest difference is in-app purchases: KhmerChess Ouk Chaktrang at none against Ouk 3D's 8. KhmerChess Ouk Chaktrang also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 6 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Ouk 3D sells 8 one-off in-app purchases. KhmerChess Ouk Chaktrang asks for nothing beyond the download.

KhmerChess Ouk Chaktrang ships an update every 2 weeks, Ouk 3D every 6 weeks. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | KhmerChess Ouk Chaktrang | Ouk 3D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Size | 90 MB | 187 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 9+ |
| Developer | [Sovathana Phat](https://appshunter.io/developer/1529310691) | [Socheat Rath](https://appshunter.io/developer/1732520380) |

## What reviewers say

### KhmerChess Ouk Chaktrang

[App page](https://appshunter.io/ios/app/khmerchess-ouk-chaktrang/id6449908889)

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

**In-app purchases:** none


### Ouk 3D

[App page](https://appshunter.io/ios/app/ouk-3d/id6478314234)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coins 4,000 | $0.99 | one-time |
| Gems 10 | $0.99 | one-time |
| Gems 25 | $1.99 | one-time |
| Coins 8,500 | $1.99 | one-time |
| Gems 60 | $4.99 | one-time |
| Coins 21,000 | $4.99 | one-time |
| Coins 50,000 | $9.99 | one-time |
| Gems 130 | $9.99 | one-time |


## Frequently asked questions

### Is KhmerChess Ouk Chaktrang free?

KhmerChess Ouk Chaktrang is free to download, with no in-app purchases.

### Is Ouk 3D free?

Ouk 3D is free to download, with in-app purchases available.

### Do KhmerChess Ouk Chaktrang or Ouk 3D have ads?

Ouk 3D shows ads; KhmerChess Ouk Chaktrang does not.

### Which is updated more often, KhmerChess Ouk Chaktrang or Ouk 3D?

KhmerChess Ouk Chaktrang ships an update every 2 weeks, and Ouk 3D every 6 weeks. Most recently, KhmerChess Ouk Chaktrang was updated on October 25, 2026 and Ouk 3D on October 7, 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.*