# 围棋九阳真经 vs ChessCoach

The clearest difference is ads: 围棋九阳真经 at none against ChessCoach's shown. 围棋九阳真经 also leads on iOS requirement (9.0 vs 15.0). ChessCoach's advantage is update cadence (weekly vs every 4 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 围棋九阳真经 sells 2 one-off in-app purchases and ChessCoach sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

围棋九阳真经 ships an update every 4 months, ChessCoach weekly. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 围棋九阳真经 | ChessCoach |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1082185577/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Weekly** |
| Size | 37 MB | 21 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, 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) | [INPHIL CHOI](https://appshunter.io/developer/6785766361) |

## What reviewers say

### 围棋九阳真经

[App page](https://appshunter.io/ios/app/id1082185577)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 订购六个月 | $19.49 | one-time |
| 订购两年 | $59.99 | one-time |


### ChessCoach

[App page](https://appshunter.io/ios/app/chesscoach-learn-chess/id6807283401)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Course | $2.99 | one-time |


## Frequently asked questions

### Is 围棋九阳真经 free?

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

### Is ChessCoach free?

ChessCoach is free to download, with in-app purchases available.

### Do 围棋九阳真经 or ChessCoach have ads?

ChessCoach shows ads; 围棋九阳真经 does not.

### Which is updated more often, 围棋九阳真经 or ChessCoach?

围棋九阳真经 ships an update every 4 months, and ChessCoach weekly. Most recently, 围棋九阳真经 was updated on November 2, 2026 and ChessCoach on November 6, 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.*