# Protractor Edge vs CTC配方

The clearest difference is in-app purchases: CTC配方 at none against Protractor Edge's 2. CTC配方 also leads on ads (none vs shown). Protractor Edge's advantage is iOS requirement (9.0 vs 12.0). On price and device support there is nothing between them.

Both are free to download. Protractor Edge sells 2 in-app purchases, starting at $1.99 per year. CTC配方 asks for nothing beyond the download.

## The numbers

| Metric | Protractor Edge | CTC配方 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (55 ratings)](https://appshunter.io/ios/app/protractor-edge-clinometer/id1198499762/reviews)** | — |
| Number of ratings | **55** | — |
| Positive reviews | 69.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 43 months | — |
| Monetization | Freemium | — |
| Size | 21 MB | 38 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [嵩 张](https://appshunter.io/developer/1091921941) | [Shanghai Yunjiao Information Technology Co., Ltd.](https://appshunter.io/developer/1649086806) |

## What reviewers say

### 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 |


### CTC配方

[App page](https://appshunter.io/ios/app/ctc/id6471565974)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Protractor Edge free?

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

### Is CTC配方 free?

CTC配方 is free to download, with no in-app purchases.

### Do Protractor Edge or CTC配方 have ads?

Protractor Edge shows ads; CTC配方 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.*