# 测量工具 vs AR尺子

测量工具 and AR尺子 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, AR尺子 fortnightly. The most recent releases landed on October 26, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 测量工具 | AR尺子 |
| --- | --- | --- |
| 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 | No |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 55 MB | 23 MB |
| Requires iOS | 12.0 | **11.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [飞剑 姚](https://appshunter.io/developer/1113334129) | [菊姣 李](https://appshunter.io/developer/1548231788) |

## 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


### AR尺子

[App page](https://appshunter.io/ios/app/ar/id1557874480)

**Features:** macOS Compatibility

**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 AR尺子 free?

AR尺子 is free to download, with no in-app purchases.

### Do 测量工具 or AR尺子 have ads?

Both 测量工具 and AR尺子 show ads.

### Which is updated more often, 测量工具 or AR尺子?

测量工具 ships an update monthly, and AR尺子 fortnightly. Most recently, 测量工具 was updated on October 26, 2026 and AR尺子 on October 7, 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.*