# Photo Protractor vs Protractor

The clearest difference is rating: Photo Protractor at 4.1 against Protractor's 1.8. Photo Protractor also leads on in-app purchases (none vs 6) and review sentiment (79% vs 64%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Protractor sells 6 in-app purchases, starting at $4.99 per month. Photo Protractor asks for nothing beyond the download.

Photo Protractor holds the better App Store score, 4.1 against 1.8. That said, the two scores are not equally well evidenced: Photo Protractor has 39 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 79% of Photo Protractor's written reviews are positive against 64% of Protractor's.

Photo Protractor ships an update every 2 months, Protractor every 5 weeks. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Photo Protractor | Protractor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (39 ratings)](https://appshunter.io/ios/app/photo-protractor/id705832869/reviews)** | [1.8 (6 ratings)](https://appshunter.io/ios/app/protractor-measure-angles/id1601838509/reviews) |
| Number of ratings | **39** | 6 |
| Positive reviews | **79.3% of reviews** | 63.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 7 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mayumi Kato](https://appshunter.io/developer/705832872) | [Noadit, Inc.](https://appshunter.io/developer/1516754355) |

## 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

[App page](https://appshunter.io/ios/app/protractor-measure-angles/id1601838509)

Measure angles precisely using your phone's screen, gyroscope, or camera. Offers smart presets, real-time feedback with high accuracy, and calibration features to adapt to various situations.

**Highlights:** 3-in-1 measurement modes, Smart angle presets with alerts, Hyper-responsive feedback (≤0.5° accuracy), Auto dynamic compensation calibration, Anti-shake technology for motion scenes, Screen lock for measurements

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP | $4.99 | per month |
| Bubble Tea | $0.99 | one-time |
| Sponsor | $4.99 | one-time |
| Coffee | $4.99 | one-time |
| Sponsor | $19.99 | one-time |
| Sponsor | $99.99 | one-time |


## Frequently asked questions

### Is Photo Protractor free?

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

### Is Protractor free?

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

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

Photo Protractor is rated higher. Photo Protractor averages 4.1 out of 5 from 39 ratings, while Protractor averages 1.8 from 6 ratings.

### Do Photo Protractor or Protractor have ads?

Neither Photo Protractor nor Protractor shows ads.

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

Photo Protractor ships an update every 2 months, and Protractor every 5 weeks. Most recently, Photo Protractor was updated on October 16, 2026 and Protractor on October 18, 2026.

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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.*