# 杜杜快乐阅读4A vs 少儿围棋教学合集

The clearest difference is in-app purchases: 杜杜快乐阅读4A at none against 少儿围棋教学合集's 10. 杜杜快乐阅读4A also leads on iOS requirement (9.0 vs 12.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 少儿围棋教学合集 sells 10 one-off in-app purchases. 杜杜快乐阅读4A asks for nothing beyond the download.

杜杜快乐阅读4A ships an update every 3 months, 少儿围棋教学合集 every 4 months. The most recent releases landed on October 26, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | 杜杜快乐阅读4A | 少儿围棋教学合集 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Size | 154 MB | 141 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [长沙市星灿软件开发有限公司](https://appshunter.io/developer/1126375430) | [如超 李](https://appshunter.io/developer/493773239) |

## What reviewers say

### 杜杜快乐阅读4A

[App page](https://appshunter.io/ios/app/4a/id1129812218)

**Features:** macOS Compatibility

**In-app purchases:** none


### 少儿围棋教学合集

[App page](https://appshunter.io/ios/app/id6474961838)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解锁第3课 | $1.99 | one-time |
| 解锁第7课 | $1.99 | one-time |
| 解锁第10课 | $1.99 | one-time |
| 解锁第11课 | $1.99 | one-time |
| 解锁第13课 | $1.99 | one-time |
| 解锁第12课 | $1.99 | one-time |
| 解锁第14课 | $1.99 | one-time |
| 解锁第15课 | $1.99 | one-time |
| 解锁第16课 | $1.99 | one-time |
| 优惠解锁少儿围棋全部课程 | $19.99 | one-time |


## Frequently asked questions

### Is 杜杜快乐阅读4A free?

杜杜快乐阅读4A is free to download, with no in-app purchases.

### Is 少儿围棋教学合集 free?

少儿围棋教学合集 is free to download, with in-app purchases available.

### Do 杜杜快乐阅读4A or 少儿围棋教学合集 have ads?

Neither 杜杜快乐阅读4A nor 少儿围棋教学合集 shows ads.

### Which is updated more often, 杜杜快乐阅读4A or 少儿围棋教学合集?

杜杜快乐阅读4A ships an update every 3 months, and 少儿围棋教学合集 every 4 months. Most recently, 杜杜快乐阅读4A was updated on October 26, 2026 and 少儿围棋教学合集 on September 26, 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.*