# 围棋快乐背定式HD vs 围棋九阳真经HD

围棋快乐背定式HD and 围棋九阳真经HD are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 围棋快乐背定式HD sells 3 one-off in-app purchases and 围棋九阳真经HD sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

围棋快乐背定式HD ships an update every 2 months, 围棋九阳真经HD every 3 months. Both last shipped on September 18, 2026.

## The numbers

| Metric | 围棋快乐背定式HD | 围棋九阳真经HD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 94 MB | 38 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [北京佳弈网络科技有限责任公司](https://appshunter.io/developer/1082185576) | [北京佳弈网络科技有限责任公司](https://appshunter.io/developer/1082185576) |

## What reviewers say

### 围棋快乐背定式HD

[App page](https://appshunter.io/ios/app/hd/id1103576005)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 订购一个月 | $5.99 | one-time |
| 订购六个月 | $14.99 | one-time |
| 订购一年 | $25.99 | one-time |


### 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 |


## Frequently asked questions

### Is 围棋快乐背定式HD free?

围棋快乐背定式HD is free to download, with in-app purchases available.

### 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.

### Do 围棋快乐背定式HD or 围棋九阳真经HD have ads?

Neither 围棋快乐背定式HD nor 围棋九阳真经HD shows ads.

### Which is updated more often, 围棋快乐背定式HD or 围棋九阳真经HD?

围棋快乐背定式HD ships an update every 2 months, and 围棋九阳真经HD every 3 months. Most recently, 围棋快乐背定式HD was updated on September 18, 2026 and 围棋九阳真经HD on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*