# 青书(西北工业版) vs 常春藤绘本

The clearest difference is device support: 常春藤绘本 at 3 against 青书(西北工业版)'s —. On price, in-app purchases and iOS requirement 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 | 青书(西北工业版) | 常春藤绘本 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Size | 63 MB | 457 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [青颖飞帆](https://appshunter.io/developer/507851198) | [丽 郑](https://appshunter.io/developer/1336808687) |

## What reviewers say

### 青书(西北工业版)

[App page](https://appshunter.io/ios/app/id916114205)

**In-app purchases:** none


### 常春藤绘本

[App page](https://appshunter.io/ios/app/education/id1343585686)

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

**In-app purchases:** none


## Frequently asked questions

### Is 青书(西北工业版) free?

青书(西北工业版) is free to download, with no in-app purchases.

### Is 常春藤绘本 free?

常春藤绘本 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.*