# 杜杜快乐阅读1B vs 科蒂轻课堂

The clearest difference is device support: 科蒂轻课堂 at 3 against 杜杜快乐阅读1B's —. 杜杜快乐阅读1B's advantage is iOS requirement (9.0 vs 13.0). 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 | 杜杜快乐阅读1B | 科蒂轻课堂 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1362466356/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Size | 303 MB | 458 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | — | **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) | [记朋 王](https://appshunter.io/developer/1339011742) |

## What reviewers say

### 杜杜快乐阅读1B

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

**In-app purchases:** none


### 科蒂轻课堂

[App page](https://appshunter.io/ios/app/id1362466356)

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

**In-app purchases:** none


## 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 科蒂轻课堂 free?

科蒂轻课堂 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.*