# 围棋九阳真经HD vs 最美课本

The clearest difference is in-app purchases: 最美课本 at none against 围棋九阳真经HD's 2. 最美课本 also leads on update cadence (every 3 weeks vs every 4 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. 围棋九阳真经HD sells 2 one-off in-app purchases. 最美课本 asks for nothing beyond the download.

围棋九阳真经HD ships an update every 4 months, 最美课本 every 3 weeks. The most recent releases landed on November 2, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 围棋九阳真经HD | 最美课本 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 33 MB | 232 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [北京佳弈网络科技有限责任公司](https://appshunter.io/developer/1082185576) | [Beijing Zaijiaxue education technology Co.Ltd](https://appshunter.io/developer/1434027950) |

## What reviewers say

### 围棋九阳真经HD

[App page](https://appshunter.io/ios/app/hd/id1103576966)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 订购六个月 | $19.99 | one-time |
| 订购两年 | $59.99 | one-time |


### 最美课本

[App page](https://appshunter.io/ios/app/id1549111114)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 围棋九阳真经HD free?

围棋九阳真经HD is free to download, with in-app purchases available.

### Is 最美课本 free?

最美课本 is free to download, with no in-app purchases.

### Do 围棋九阳真经HD or 最美课本 have ads?

Neither 围棋九阳真经HD nor 最美课本 shows ads.

### Which is updated more often, 围棋九阳真经HD or 最美课本?

围棋九阳真经HD ships an update every 4 months, and 最美课本 every 3 weeks. Most recently, 围棋九阳真经HD was updated on November 2, 2026 and 最美课本 on October 29, 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.*