# 杜杜快乐阅读1B vs 拼音学习机

The clearest difference is in-app purchases: 杜杜快乐阅读1B at none against 拼音学习机's 1. 杜杜快乐阅读1B also leads on iOS requirement (9.0 vs 16). 拼音学习机's advantage is device support. On price there is nothing between them.

Both are free to download. 拼音学习机 sells 1 one-off in-app purchase. 杜杜快乐阅读1B asks for nothing beyond the download.

## The numbers

| Metric | 杜杜快乐阅读1B | 拼音学习机 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Every 3 weeks |
| Size | 303 MB | 101 MB |
| Requires iOS | **9.0** | 16 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [长沙市星灿软件开发有限公司](https://appshunter.io/developer/1126375430) | [伟 雷](https://appshunter.io/developer/1347765042) |

## What reviewers say

### 杜杜快乐阅读1B

[App page](https://appshunter.io/ios/app/1b/id929247622)

**In-app purchases:** none


### 拼音学习机

[App page](https://appshunter.io/ios/app/id6761793109)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 永久会员 | $3.99 | one-time |


## Frequently asked questions

### Is 杜杜快乐阅读1B free?

杜杜快乐阅读1B is free to download, with no in-app purchases.

### Is 拼音学习机 free?

拼音学习机 is free to download, with in-app purchases available.

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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.*