# 测量工具 vs 测量大师APP

The clearest difference is ads: 测量大师APP at none against 测量工具's shown. 测量工具's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

测量工具 ships an update monthly, 测量大师APP every 3 weeks. The most recent releases landed on August 12, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 测量工具 | 测量大师APP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (76 ratings)](https://appshunter.io/ios/app/id1113334130/reviews)** | — |
| Number of ratings | **76** | — |
| Positive reviews | 76.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 55 MB | 195 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [飞剑 姚](https://appshunter.io/developer/1113334129) | [WUXIMENTU Network Technology Co., Ltd.](https://appshunter.io/developer/1449669905) |

## 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


### 测量大师APP

[App page](https://appshunter.io/ios/app/app/id1504587811)

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

**In-app purchases:** none


## Frequently asked questions

### Is 测量工具 free?

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

### Is 测量大师APP free?

测量大师APP is free to download, with no in-app purchases.

### Do 测量工具 or 测量大师APP have ads?

测量工具 shows ads; 测量大师APP does not.

### Which is updated more often, 测量工具 or 测量大师APP?

测量工具 ships an update monthly, and 测量大师APP every 3 weeks. Most recently, 测量工具 was updated on August 12, 2026 and 测量大师APP on September 15, 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.*