# HELLO地球（郑州图书馆） vs AR书香地球

The clearest difference is iOS requirement: HELLO地球（郑州图书馆） at 7.0 against AR书香地球's 11.0. On price, ads, in-app purchases and device support 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 | HELLO地球（郑州图书馆） | AR书香地球 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Size | 626 MB | 705 MB |
| Requires iOS | **7.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Vivabro Technology Co.,Ltd.](https://appshunter.io/developer/1086003901) | [Beijing Shuxiang Wenya Book Culture Co., Ltd.](https://appshunter.io/developer/1693173654) |

## What reviewers say

### HELLO地球（郑州图书馆）

[App page](https://appshunter.io/ios/app/hello/id1448085093)

**In-app purchases:** none


### AR书香地球

[App page](https://appshunter.io/ios/app/ar/id6469944864)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HELLO地球（郑州图书馆） free?

HELLO地球（郑州图书馆） is free to download, with no in-app purchases.

### Is AR书香地球 free?

AR书香地球 is free to download, with no in-app purchases.

### Do HELLO地球（郑州图书馆） or AR书香地球 have ads?

Neither HELLO地球（郑州图书馆） nor AR书香地球 shows ads.

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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.*