# Protractor vs Angle Meter

The clearest difference is ads: Protractor at none against Angle Meter's shown. Angle Meter's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Protractor sells 3 in-app purchases, starting at $4.99 per 7 days and Angle Meter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Protractor ships an update every 6 weeks, Angle Meter every 3 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Protractor | Angle Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 5 MB | 40 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [hiroki kawamura](https://appshunter.io/developer/1613885005) |

## What reviewers say

### Protractor

[App page](https://appshunter.io/ios/app/protractor-angle-finder/id6772273661)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Incline Gauge Weekly | $4.99 | per 7 days |
| Roof Pitch Yearly | $24.99 | per year |
| Bevel & Degree, Pay Once | $49.99 | one-time |


### Angle Meter

[App page](https://appshunter.io/ios/app/angle-meter-slope-and-tilt/id6787397683)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Premium (Angle Meter) | $17.99 | one-time |


## Frequently asked questions

### Is Protractor free?

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

### Is Angle Meter free?

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

### Do Protractor or Angle Meter have ads?

Angle Meter shows ads; Protractor does not.

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

Protractor ships an update every 6 weeks, and Angle Meter every 3 weeks. Most recently, Protractor was updated on October 30, 2026 and Angle Meter on October 28, 2026.

---

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