# 隐智棋盘课堂 vs 大成云

The clearest difference is device support: 隐智棋盘课堂 at 2 against 大成云's —. 大成云's advantage is iOS requirement (10.0 vs 12.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 隐智棋盘课堂 | 大成云 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 5 weeks | — |
| Size | 140 MB | 168 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [湖南隐智科技有限公司](https://appshunter.io/developer/1188203955) | [Dacheng Strategy Taxpayer Club Co., Ltd.](https://appshunter.io/developer/1104891276) |

## What reviewers say

### 隐智棋盘课堂

[App page](https://appshunter.io/ios/app/id1538730196)

**In-app purchases:** none


### 大成云

[App page](https://appshunter.io/ios/app/id1663440015)

**In-app purchases:** none


## Frequently asked questions

### Is 隐智棋盘课堂 free?

隐智棋盘课堂 is free to download, with no in-app purchases.

### Is 大成云 free?

大成云 is free to download, with no in-app purchases.

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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.*