# 金算子 vs 角度测量

The clearest difference is in-app purchases: 金算子 at none against 角度测量's 1. 角度测量's advantage is iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. 角度测量 sells 1 in-app purchase, starting at $1.99 per 7 days. 金算子 asks for nothing beyond the download.

## The numbers

| Metric | 金算子 | 角度测量 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 11 MB | 27 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [金友 胡](https://appshunter.io/developer/1562356894) | [秋平 李](https://appshunter.io/developer/1636667539) |

## What reviewers say

### 金算子

[App page](https://appshunter.io/ios/app/id6474504640)

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

**In-app purchases:** none


### 角度测量

[App page](https://appshunter.io/ios/app/id6772936929)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 角度测量尊贵会员 | $1.99 | per 7 days |


## Frequently asked questions

### Is 金算子 free?

金算子 is free to download, with no in-app purchases.

### Is 角度测量 free?

角度测量 is free to download, with in-app purchases available.

### Do 金算子 or 角度测量 have ads?

Neither 金算子 nor 角度测量 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.*