# 测量工具 vs 万物识别

The clearest difference is in-app purchases: 测量工具 at none against 万物识别's 1. 万物识别's advantage is update cadence (daily vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 万物识别 sells 1 in-app purchase, starting at $4.99 per 7 days. 测量工具 asks for nothing beyond the download.

测量工具 ships an update monthly, 万物识别 daily. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 测量工具 | 万物识别 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (77 ratings)](https://appshunter.io/ios/app/id1113334130/reviews)** | — |
| Number of ratings | **77** | — |
| Positive reviews | 84.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 55 MB | 60 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [飞剑 姚](https://appshunter.io/developer/1113334129) | [洋 于](https://appshunter.io/developer/1729108291) |

## What reviewers say

### 测量工具

[App page](https://appshunter.io/ios/app/id1113334130)

This utility app offers a suite of measurement tools for your phone. It includes a ruler, protractor, noise meter, distance calculator, level, compass, and flashlight. Easily measure lengths, angles, sound levels, and more with convenient on-the-go tools.

**Highlights:** Ruler (metric/inch), Noise meter (decibel), Protractor (camera-based), Distance measurement, Level tool, Compass, Flashlight

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

**In-app purchases:** none


### 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 测量工具 free?

测量工具 is free to download, with no in-app purchases.

### Is 万物识别 free?

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

### Do 测量工具 or 万物识别 have ads?

Both 测量工具 and 万物识别 show ads.

### Which is updated more often, 测量工具 or 万物识别?

测量工具 ships an update monthly, and 万物识别 daily. Most recently, 测量工具 was updated on November 1, 2026 and 万物识别 on October 25, 2026.

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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.*