# Protractor Edge vs Angulus Pro

The clearest difference is ads: Angulus Pro at none against Protractor Edge's shown. Angulus Pro also leads on update cadence (fortnightly vs every 43 months) and rating (4.6 vs 4.2). Protractor Edge's advantage is ratings volume (94 vs 29) and iOS requirement (9.0 vs 17.6). On price, in-app purchases, monetization model 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 and Angulus Pro sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Angulus Pro holds the better App Store score, 4.6 against 4.2. Both are backed by a comparable volume of ratings — 94 and 29 respectively.

Protractor Edge ships an update every 43 months, Angulus Pro fortnightly. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Protractor Edge | Angulus Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (94 ratings)](https://appshunter.io/ios/app/protractor-edge-clinometer/id1198499762/reviews) | **[4.6 (29 ratings)](https://appshunter.io/ios/app/angulus-pro-precision-angle/id6736951943/reviews)** |
| Number of ratings | **94** | 29 |
| Positive reviews | 69.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 43 months | **Fortnightly** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 21 MB | 134 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [嵩 张](https://appshunter.io/developer/1091921941) | [Yonaga](https://appshunter.io/developer/1774024485) |

## 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 |


### Angulus Pro

[App page](https://appshunter.io/ios/app/angulus-pro-precision-angle/id6736951943)

This app provides professional-grade angle measurements for clinical and personal use. It offers high precision, multiple measurement modes, and AI-powered camera assistance for accurate assessments and progress tracking.

**Highlights:** Precision to 0.01°, Four Measurement Modes, AI-Powered Camera Overlay, Real-Time Analysis, Clinical Documentation & Export, Progress Tracking

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Angulus Pro Monthly | $2.99 | per month |
| Angulus Pro Annually | $29.99 | per year |


## Frequently asked questions

### Is Protractor Edge free?

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

### Is Angulus Pro free?

Angulus Pro is free to download, with in-app purchases available.

### Which has better reviews, Protractor Edge or Angulus Pro?

Angulus Pro is rated higher. Protractor Edge averages 4.2 out of 5 from 94 ratings, while Angulus Pro averages 4.6 from 29 ratings.

### Do Protractor Edge or Angulus Pro have ads?

Protractor Edge shows ads; Angulus Pro does not.

### Which is updated more often, Protractor Edge or Angulus Pro?

Protractor Edge ships an update every 43 months, and Angulus Pro fortnightly. Most recently, Protractor Edge was updated on November 2, 2026 and Angulus Pro on November 4, 2026.

---

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