# Protractor Smart vs Protractor Angle Meter

The clearest difference is review sentiment: Protractor Angle Meter at 100% against Protractor Smart's 40%. Protractor Angle Meter also leads on in-app purchases (none vs 1) and update cadence (fortnightly vs every 21 months). Protractor Smart's advantage is ratings volume (242 vs 1) and device support (3 vs 1). On price, ads and monetization model there is nothing between them.

Both are free to download. Protractor Smart sells 1 one-off in-app purchase. Protractor Angle Meter asks for nothing beyond the download.

Protractor Angle Meter holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Protractor Smart has 242 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 40% of Protractor Smart's written reviews are positive against 100% of Protractor Angle Meter's.

Protractor Smart ships an update every 21 months, Protractor Angle Meter fortnightly. The most recent releases landed on September 26, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Protractor Smart | Protractor Angle Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (242 ratings)](https://appshunter.io/ios/app/protractor-smart/id1076530001/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/protractor-angle-meter/id6778436306/reviews)** |
| Number of ratings | **242** | 1 |
| Positive reviews | 40.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 21 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 11 MB | 56 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ExaMobile S.A.](https://appshunter.io/developer/506014841) | [Romiick LLC](https://appshunter.io/developer/1716146475) |

## What reviewers say

### Protractor Smart

[App page](https://appshunter.io/ios/app/protractor-smart/id1076530001)

This app acts as a smart instrument for measuring angles using your device's camera. It offers two free modes for measuring angles on screen or using a plumb bob for slopes, with an additional premium mode for polygon measurements.

**Highlights:** Camera-based angle measurement, Touch measure mode, Plumb bob measure for slopes, Polygon measurement (premium), Screenshot functionality

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AdBlock - Remove ads | $1.99 | one-time |

**What reviewers like**

- 👍 Useful for measurements
- 👍 Accurate for its purpose
- 👍 Convenient and handy
- 👍 Good for specific tasks (e.g., knife sharpening, stereo mic angles)
- 👍 No excessive charges

**What reviewers complain about**

- 🐛 App freezes/loads indefinitely
- 🐛 Does not launch after updates
- 🐛 Stuck on loading screen
- 🐛 Inaccurate or unstable measurements
- 🐛 Camera quality issues

**Reported bugs**

- App loads indefinitely
- App does not launch after iOS updates
- Stuck on loading screen
- Photo upload not possible in premium version
- Upside-down protractor on iOS

**Requested features**

- Improve camera function (light, zoom)
- Add automatic hold function
- Increase digital readout size
- Add more skins/cosmetics
- Option to remove ads


### Protractor Angle Meter

[App page](https://appshunter.io/ios/app/protractor-angle-meter/id6778436306)

This app allows you to measure angles from photos using your device's camera or existing images. Add multiple measurements with customizable colors and labels, and view results in various units. Save your work automatically and export high-quality images of your measurements.

**Highlights:** Measure angles from photos, Live camera or photo library input, Multiple angle measurements per photo, Customizable color and labels, Degrees, radians, or slope percentage output, Precision Loupe for accuracy, Automatic saving

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

**In-app purchases:** none


## Frequently asked questions

### Is Protractor Smart free?

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

### Is Protractor Angle Meter free?

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

### Which has better reviews, Protractor Smart or Protractor Angle Meter?

Protractor Angle Meter is rated higher. Protractor Smart averages 4.6 out of 5 from 242 ratings, while Protractor Angle Meter averages 5.0 from 1 ratings.

### Do Protractor Smart or Protractor Angle Meter have ads?

Neither Protractor Smart nor Protractor Angle Meter shows ads.

### Which is updated more often, Protractor Smart or Protractor Angle Meter?

Protractor Smart ships an update every 21 months, and Protractor Angle Meter fortnightly. Most recently, Protractor Smart was updated on September 26, 2026 and Protractor Angle Meter on September 22, 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.*