# Protractor Angle Finder Pro vs Smart Protractor

The clearest difference is in-app purchases: Protractor Angle Finder Pro at none against Smart Protractor's 2. Protractor Angle Finder Pro also leads on iOS requirement (12.1 vs 17.2). On price, update cadence, ads and device support there is nothing between them.

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

Protractor Angle Finder Pro ships an update fortnightly, Smart Protractor every 2 weeks. The most recent releases landed on September 5, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Protractor Angle Finder Pro | Smart Protractor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/protractor-angle-finder-pro/id6736649979/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Monetization | Free | — |
| Size | 25 MB | 8 MB |
| Requires iOS | **12.1** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Krzysztof Gwiazda](https://appshunter.io/developer/1546740383) | [Jun Yamabe](https://appshunter.io/developer/1732682049) |

## What reviewers say

### Protractor Angle Finder Pro

[App page](https://appshunter.io/ios/app/protractor-angle-finder-pro/id6736649979)

This utility app provides a digital protractor using your device's camera for accurate angle measurements on real-world objects. It offers magnification and a frame pause feature for detailed inspection, making it ideal for DIY projects and hobbies.

**Highlights:** Camera-based angle measurement, Real-time video feed overlay, Frame pause for static inspection, Up to 11x magnification, Integrated torch

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

**In-app purchases:** none


### Smart Protractor

[App page](https://appshunter.io/ios/app/smart-protractor/id6746047543)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Protractor Angle Finder Pro free?

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

### Is Smart Protractor free?

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

### Do Protractor Angle Finder Pro or Smart Protractor have ads?

Neither Protractor Angle Finder Pro nor Smart Protractor shows ads.

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

Protractor Angle Finder Pro ships an update fortnightly, and Smart Protractor every 2 weeks. Most recently, Protractor Angle Finder Pro was updated on September 5, 2026 and Smart Protractor on September 11, 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.*