# 围棋九阳真经HD vs 巧多数学思维

The clearest difference is update cadence: 围棋九阳真经HD at every 3 months against 巧多数学思维's every 10 months. 围棋九阳真经HD also leads on iOS requirement (9.0 vs 12.0). 巧多数学思维's advantage is device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. 围棋九阳真经HD sells 2 one-off in-app purchases and 巧多数学思维 sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

围棋九阳真经HD ships an update every 3 months, 巧多数学思维 every 10 months. The most recent releases landed on September 18, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | 围棋九阳真经HD | 巧多数学思维 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 10 months |
| Size | 38 MB | 294 MB |
| Requires iOS | **9.0** | 12.0 |
| 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) | [云华 袁](https://appshunter.io/developer/1253772836) |

## What reviewers say

### 围棋九阳真经HD

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

**Features:** macOS Compatibility

**In-app purchases (2)**

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


### 巧多数学思维

[App page](https://appshunter.io/ios/app/id6478361833)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解锁第3阶全部课程 | $6.99 | one-time |
| 解锁第2阶全部课程 | $6.99 | one-time |
| 解锁第1阶全部课程 | $6.99 | one-time |
| 解锁思维全部课程 | $11.99 | one-time |


## 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 巧多数学思维 free?

巧多数学思维 is free to download, with in-app purchases available.

### Do 围棋九阳真经HD or 巧多数学思维 have ads?

Neither 围棋九阳真经HD nor 巧多数学思维 shows ads.

### Which is updated more often, 围棋九阳真经HD or 巧多数学思维?

围棋九阳真经HD ships an update every 3 months, and 巧多数学思维 every 10 months. Most recently, 围棋九阳真经HD was updated on September 18, 2026 and 巧多数学思维 on September 8, 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.*