# Protractor vs SlopeCheck

The clearest difference is in-app purchases: SlopeCheck at none against Protractor's 3. SlopeCheck also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Protractor sells 3 in-app purchases, starting at $4.99 per 7 days. SlopeCheck asks for nothing beyond the download.

## The numbers

| Metric | Protractor | SlopeCheck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Size | 5 MB | 2 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [VINCENT WEI HON ZHENG](https://appshunter.io/developer/1837052899) |

## 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 |


### SlopeCheck

[App page](https://appshunter.io/ios/app/slopecheck/id6797162721)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Protractor free?

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

### Is SlopeCheck free?

SlopeCheck is free to download, with no in-app purchases.

### Do Protractor or SlopeCheck have ads?

Neither Protractor nor SlopeCheck shows ads.

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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.*