# Photo Protractor vs Protractor Edge

The clearest difference is in-app purchases: Photo Protractor at none against Protractor Edge's 2. Photo Protractor also leads on ads (none vs shown) and update cadence (every 2 months vs every 43 months). Protractor Edge's advantage is rating (4.5 vs 4.1). On price, ratings volume, device support and iOS requirement there is nothing between them.

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

Protractor Edge holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 39 and 55 respectively. Written reviews complicate that: 79% of Photo Protractor's written reviews are positive against 70% of Protractor Edge's, so the app with the better star average is not the one people write more warmly about.

Photo Protractor ships an update every 2 months, Protractor Edge every 43 months. Both last shipped on October 16, 2026.

## The numbers

| Metric | Photo Protractor | Protractor Edge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (39 ratings)](https://appshunter.io/ios/app/photo-protractor/id705832869/reviews) | **[4.5 (55 ratings)](https://appshunter.io/ios/app/protractor-edge-clinometer/id1198499762/reviews)** |
| Number of ratings | 39 | **55** |
| Positive reviews | **79.3% of reviews** | 69.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 43 months |
| Monetization | **Free** | Freemium |
| Size | 11 MB | 21 MB |
| Requires iOS | **8.0** | 9.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mayumi Kato](https://appshunter.io/developer/705832872) | [嵩 张](https://appshunter.io/developer/1091921941) |

## What reviewers say

### Photo Protractor

[App page](https://appshunter.io/ios/app/photo-protractor/id705832869)

This app functions as a digital protractor, allowing users to measure angles and radians directly from photos. Simply take a picture, position the measurement area, and adjust the lines to get precise readings. It's an easy-to-use tool for quick angle calculations.

**Highlights:** Measure angles from photos, Display angles and radians, Adjustable measurement lines, Easy-to-use interface, Take pictures for measurement

**In-app purchases:** none


### 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 Photo Protractor free?

Photo Protractor is free to download, with no in-app purchases.

### Is Protractor Edge free?

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

### Which has better reviews, Photo Protractor or Protractor Edge?

Protractor Edge is rated higher. Photo Protractor averages 4.1 out of 5 from 39 ratings, while Protractor Edge averages 4.5 from 55 ratings.

### Do Photo Protractor or Protractor Edge have ads?

Protractor Edge shows ads; Photo Protractor does not.

### Which is updated more often, Photo Protractor or Protractor Edge?

Photo Protractor ships an update every 2 months, and Protractor Edge every 43 months. Most recently, Photo Protractor was updated on October 16, 2026 and Protractor Edge on October 16, 2026.

---

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