# 尺子测量 vs 万物识别

The clearest difference is device support: 万物识别 at 2 against 尺子测量's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. 尺子测量 sells 3 in-app purchases, starting at $2.99 per month and 万物识别 sells 1 in-app purchase, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 尺子测量 | 万物识别 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | — | Yes |
| Update frequency | — | Daily |
| Size | 24 MB | 60 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Amritaayur Health Management Service Co.,Ltd.](https://appshunter.io/developer/1689205204) | [洋 于](https://appshunter.io/developer/1729108291) |

## What reviewers say

### 尺子测量

[App page](https://appshunter.io/ios/app/id6526468871)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $2.99 | per month |
| 年会员 | $9.99 | per year |
| 永久会员 | $14.99 | one-time |


### 万物识别

[App page](https://appshunter.io/ios/app/id6742437270)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 扫描王高级版 | $4.99 | per 7 days |


## Frequently asked questions

### Is 尺子测量 free?

尺子测量 is free to download, with in-app purchases available.

### Is 万物识别 free?

万物识别 is free to download, with in-app purchases available.

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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.*