# HELLO地球（郑州图书馆） vs Wonder Circuits

The clearest difference is in-app purchases: HELLO地球（郑州图书馆） at none against Wonder Circuits's 1. HELLO地球（郑州图书馆） also leads on iOS requirement (7.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Wonder Circuits sells 1 one-off in-app purchase. HELLO地球（郑州图书馆） asks for nothing beyond the download.

## The numbers

| Metric | HELLO地球（郑州图书馆） | Wonder Circuits |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wonder-circuits-digital-logic/id6756538467/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 days |
| Size | 626 MB | 28 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Vivabro Technology Co.,Ltd.](https://appshunter.io/developer/1086003901) | [亚娟 秦](https://appshunter.io/developer/1539395142) |

## What reviewers say

### HELLO地球（郑州图书馆）

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

**In-app purchases:** none


### Wonder Circuits

[App page](https://appshunter.io/ios/app/wonder-circuits-digital-logic/id6756538467)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Content | $2.99 | one-time |


## 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 Wonder Circuits free?

Wonder Circuits is free to download, with in-app purchases available.

### Do HELLO地球（郑州图书馆） or Wonder Circuits have ads?

Neither HELLO地球（郑州图书馆） nor Wonder Circuits 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.*