# 测量工具 vs 视力表APP

The clearest difference is review sentiment: 测量工具 at 77% against 视力表APP's 0%. 测量工具 also leads on rating (4.5 vs 1.0) and ratings volume (76 vs 1). 视力表APP's advantage is ads (none vs shown) and update cadence (every 11 days vs monthly). On price, in-app purchases, device support and iOS requirement 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 holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: 测量工具 has 76 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 77% of 测量工具's written reviews are positive against 0% of 视力表APP's.

测量工具 ships an update monthly, 视力表APP every 11 days. The most recent releases landed on August 12, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | 测量工具 | 视力表APP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (76 ratings)](https://appshunter.io/ios/app/id1113334130/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/app/id6479397813/reviews) |
| Number of ratings | **76** | 1 |
| Positive reviews | **76.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 55 MB | 70 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [飞剑 姚](https://appshunter.io/developer/1113334129) | [上海视全视美科技发展有限公司](https://appshunter.io/developer/1735899706) |

## 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


### 视力表APP

[App page](https://appshunter.io/ios/app/app/id6479397813)

This app provides a convenient and accurate way to test your vision from anywhere. It offers a series of vision tests to assess your eyesight, including myopia, hyperopia, and astigmatism. The simple interface makes it easy to monitor your vision health regularly.

**Highlights:** Accurate vision testing, Assess myopia, hyperopia, astigmatism, Simple and intuitive interface, Regular vision monitoring, Convenient testing anywhere

**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 视力表APP free?

视力表APP is free to download, with no in-app purchases.

### Which has better reviews, 测量工具 or 视力表APP?

测量工具 is rated higher. 测量工具 averages 4.5 out of 5 from 76 ratings, while 视力表APP averages 1.0 from 1 ratings.

### Do 测量工具 or 视力表APP have ads?

测量工具 shows ads; 视力表APP does not.

### Which is updated more often, 测量工具 or 视力表APP?

测量工具 ships an update monthly, and 视力表APP every 11 days. Most recently, 测量工具 was updated on August 12, 2026 and 视力表APP on August 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*