# 工程几何计算器 vs Protractor Edge

The clearest difference is ads: 工程几何计算器 at none against Protractor Edge's shown. 工程几何计算器 also leads on monetization model (free vs freemium) and rating (4.4 vs 4.2). Protractor Edge's advantage is ratings volume (94 vs 9). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 工程几何计算器 sells 1 one-off in-app purchase and Protractor Edge sells 2 in-app purchases, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

工程几何计算器 holds the better App Store score, 4.4 against 4.2. That said, the two scores are not equally well evidenced: Protractor Edge has 94 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 83% of 工程几何计算器's written reviews are positive against 70% of Protractor Edge's.

## The numbers

| Metric | 工程几何计算器 | Protractor Edge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (9 ratings)](https://appshunter.io/ios/app/id1054766479/reviews)** | [4.2 (94 ratings)](https://appshunter.io/ios/app/protractor-edge-clinometer/id1198499762/reviews) |
| Number of ratings | 9 | **94** |
| Positive reviews | **82.6% of reviews** | 69.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 43 months |
| Monetization | **Free** | Freemium |
| Size | 24 MB | 21 MB |
| Requires iOS | **6.0** | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [境 饶](https://appshunter.io/developer/935275144) | [嵩 张](https://appshunter.io/developer/1091921941) |

## What reviewers say

### 工程几何计算器

[App page](https://appshunter.io/ios/app/id1054766479)

This utility app calculates geometric areas for polygons and solves for missing sides and angles in triangles. It also includes unit conversion between millimeters, centimeters, meters, and kilometers, with a dedicated numeric keypad for efficient input.

**Highlights:** Polygon area calculation, Triangle side and angle solver, Unit conversion (mm, cm, m, km), Dedicated numeric keypad, Simple and practical interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 去除广告 | $0.99 | one-time |


### Protractor Edge

[App page](https://appshunter.io/ios/app/protractor-edge-clinometer/id1198499762)

Measure angles directly on your device without taking photos or placing the angle on screen. This app offers a unique and efficient way to determine degrees, saving you time with its handy assistant functionality.

**Highlights:** Direct angle measurement on device, Intuitive line dragging interface, Measures angles in photos (Premium), Measures from camera view (Premium), Ad-free experience (Premium)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $1.99 | per year |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is 工程几何计算器 free?

工程几何计算器 is free to download, with in-app purchases available.

### Is Protractor Edge free?

Protractor Edge is free to download, with in-app purchases available.

### Which has better reviews, 工程几何计算器 or Protractor Edge?

工程几何计算器 is rated higher. 工程几何计算器 averages 4.4 out of 5 from 9 ratings, while Protractor Edge averages 4.2 from 94 ratings.

### Do 工程几何计算器 or Protractor Edge have ads?

Protractor Edge shows ads; 工程几何计算器 does not.

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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.*