# Protractor for Angle Measuring vs MRF Field Collector

The clearest difference is in-app purchases: MRF Field Collector at none against Protractor for Angle Measuring's 5. MRF Field Collector also leads on ads (none vs shown) and update cadence (weekly vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Protractor for Angle Measuring sells 5 in-app purchases, starting at $0.99 per 7 days. MRF Field Collector asks for nothing beyond the download.

Protractor for Angle Measuring ships an update every 3 weeks, MRF Field Collector weekly. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Protractor for Angle Measuring | MRF Field Collector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.1K ratings)](https://appshunter.io/ios/app/protractor-for-angle-measuring/id6474609160/reviews)** | — |
| Number of ratings | **1.1K** | — |
| Positive reviews | 48.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 120 MB | 48 MB |
| Requires iOS | 18.6 | **13** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [AppLiks Sp. z O.O.](https://appshunter.io/developer/1804335622) | [MRF Geosystems Corporation](https://appshunter.io/developer/1022031549) |

## What reviewers say

### Protractor for Angle Measuring

[App page](https://appshunter.io/ios/app/protractor-for-angle-measuring/id6474609160)

Transform your iPhone into a precision angle measurement tool. Effortlessly assess angles in real-time using touch and camera modes, measure multiple angles simultaneously, and customize your tools for accuracy and simplicity. Ideal for quick, reliable on-the-go assessments.

**Highlights:** Real-time angle measurement, Touch and camera modes, Simultaneous measurement of unlimited angles, Plumb bob pendulum for tilt determination, Tool color customization, Measure angles in photos

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $0.99 | per 7 days |
| Weekly Access with Trial | $1.99 | per 7 days |
| Weekly Access | $1.99 | per 7 days |
| Yearly Access | $3.99 | per year |
| Yearly Access | $4.99 | per year |

**What reviewers like**

- 👍 Useful for surveying and measuring angles
- 💡 Interesting use of camera to overlay protractor
- 👍 Helps with specific use cases like golf setup
- 👍 Provides a clutter-free protractor experience

**What reviewers complain about**

- 🐛 Difficulty using the protractor tool and angle measurement
- 🐛 Inability to zoom in/out when measuring angles in photos
- 🐛 Inaccurate angle measurements in some cases

**Reported bugs**

- Protractor tool is hard to use and requires multiple tries
- Angle measurements do not match real-world angles

**Requested features**

- Add more instructions and guidance for using the protractor tool
- Improve the zoom functionality when measuring angles in photos
- Enhance the accuracy of angle measurements


### MRF Field Collector

[App page](https://appshunter.io/ios/app/mrf-field-collector/id6760177909)

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

**In-app purchases:** none


## Frequently asked questions

### Is Protractor for Angle Measuring free?

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

### Is MRF Field Collector free?

MRF Field Collector is free to download, with no in-app purchases.

### Do Protractor for Angle Measuring or MRF Field Collector have ads?

Protractor for Angle Measuring shows ads; MRF Field Collector does not.

### Which is updated more often, Protractor for Angle Measuring or MRF Field Collector?

Protractor for Angle Measuring ships an update every 3 weeks, and MRF Field Collector weekly. Most recently, Protractor for Angle Measuring was updated on November 4, 2026 and MRF Field Collector on November 5, 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.*