# 數學工具：探究四邊形 vs Sobo Math

The clearest difference is in-app purchases: 數學工具：探究四邊形 at none against Sobo Math's 2. 數學工具：探究四邊形 also leads on iOS requirement (6.0 vs 15.0). Sobo Math's advantage is device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Sobo Math sells 2 in-app purchases, starting at $9.99 per month. 數學工具：探究四邊形 asks for nothing beyond the download.

## The numbers

| Metric | 數學工具：探究四邊形 | Sobo Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 5 MB | 28 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pearson Education Asia Limited](https://appshunter.io/developer/429357888) | [kwok wai yeung](https://appshunter.io/developer/1887192726) |

## What reviewers say

### 數學工具：探究四邊形

[App page](https://appshunter.io/ios/app/id1021469207)

**In-app purchases:** none


### Sobo Math

[App page](https://appshunter.io/ios/app/sobo-math/id6785965928)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 小學數學大冒險 | $9.99 | per month |
| PRO Yearly | $69.99 | per year |


## Frequently asked questions

### Is 數學工具：探究四邊形 free?

數學工具：探究四邊形 is free to download, with no in-app purchases.

### Is Sobo Math free?

Sobo Math is free to download, with in-app purchases available.

### Do 數學工具：探究四邊形 or Sobo Math have ads?

Neither 數學工具：探究四邊形 nor Sobo Math 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.*