# 杜杜快乐阅读2B vs Coding Express LEGO® Education

The clearest difference is device support: 杜杜快乐阅读2B at 3 against Coding Express LEGO® Education's 1. 杜杜快乐阅读2B also leads on iOS requirement (9.0 vs 15.0). On price, update cadence, ads 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.

杜杜快乐阅读2B ships an update every 6 months, Coding Express LEGO® Education every 8 months. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 杜杜快乐阅读2B | Coding Express LEGO® Education |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (250 ratings)](https://appshunter.io/ios/app/coding-express-lego-education/id1419604286/reviews)** |
| Number of ratings | — | **250** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 8 months |
| Monetization | — | Free |
| Size | 356 MB | 855 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [长沙市星灿软件开发有限公司](https://appshunter.io/developer/1126375430) | [LEGO Education](https://appshunter.io/developer/708170734) |

## What reviewers say

### 杜杜快乐阅读2B

[App page](https://appshunter.io/ios/app/2b/id930980933)

**Features:** macOS Compatibility

**In-app purchases:** none


### Coding Express LEGO® Education

[App page](https://appshunter.io/ios/app/coding-express-lego-education/id1419604286)

This app introduces preschoolers to early coding concepts and 21st-century skills using a LEGO DUPLO train set. It offers four engaging activity areas: Journeys, Characters, Math, and Music, fostering problem-solving, collaboration, and creativity.

**Highlights:** Early coding concepts for preschoolers, LEGO DUPLO train set integration, Four activity areas: Journeys, Characters, Math, Music, Develops sequencing, problem-solving, and collaboration, Teacher guides and lesson plans included, Supports social and emotional development

**In-app purchases:** none


## Frequently asked questions

### Is 杜杜快乐阅读2B free?

杜杜快乐阅读2B is free to download, with no in-app purchases.

### Is Coding Express LEGO® Education free?

Coding Express LEGO® Education is free to download, with no in-app purchases.

### Do 杜杜快乐阅读2B or Coding Express LEGO® Education have ads?

Neither 杜杜快乐阅读2B nor Coding Express LEGO® Education shows ads.

### Which is updated more often, 杜杜快乐阅读2B or Coding Express LEGO® Education?

杜杜快乐阅读2B ships an update every 6 months, and Coding Express LEGO® Education every 8 months. Most recently, 杜杜快乐阅读2B was updated on October 4, 2026 and Coding Express LEGO® Education on October 7, 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.*