# Protractor vs Diedro Angle Finder & Level

The clearest difference is update cadence: Diedro Angle Finder & Level at every 2 weeks against Protractor's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Protractor sells 3 in-app purchases, starting at $4.99 per 7 days and Diedro Angle Finder & Level sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Protractor ships an update every 6 weeks, Diedro Angle Finder & Level every 2 weeks. The most recent releases landed on November 11, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Protractor | Diedro Angle Finder & Level |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Size | 5 MB | 9 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [ROBERTO INSUA BRANDARIZ](https://appshunter.io/developer/6804942729) |

## 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 |


### Diedro Angle Finder & Level

[App page](https://appshunter.io/ios/app/diedro-angle-finder-and-level/id6818955422)

**Features:** Family Sharing, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diedro Pro Monthly | $7.99 | per month |
| Diedro Pro | $29.99 | one-time |


## Frequently asked questions

### Is Protractor free?

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

### Is Diedro Angle Finder & Level free?

Diedro Angle Finder & Level is free to download, with in-app purchases available.

### Do Protractor or Diedro Angle Finder & Level have ads?

Neither Protractor nor Diedro Angle Finder & Level shows ads.

### Which is updated more often, Protractor or Diedro Angle Finder & Level?

Protractor ships an update every 6 weeks, and Diedro Angle Finder & Level every 2 weeks. Most recently, Protractor was updated on November 11, 2026 and Diedro Angle Finder & Level on November 6, 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.*