# Protractor Angle Measure Tool vs Roo Data Motorsport

The clearest difference is in-app purchases: Roo Data Motorsport at none against Protractor Angle Measure Tool's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Protractor Angle Measure Tool sells 4 in-app purchases, starting at $4.99 per 7 days. Roo Data Motorsport asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Protractor Angle Measure Tool | Roo Data Motorsport |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (179 ratings)](https://appshunter.io/ios/app/protractor-angle-measure-tool/id6742701087/reviews)** | — |
| Number of ratings | **179** | — |
| Positive reviews | 11.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 77 MB | 20 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Appcellent](https://appshunter.io/developer/1870956141) | [RUSSELLA KERR](https://appshunter.io/developer/1877396422) |

## What reviewers say

### Protractor Angle Measure Tool

[App page](https://appshunter.io/ios/app/protractor-angle-measure-tool/id6742701087)

This tool transforms your device into a precise angle measurement instrument. It's ideal for DIY projects, construction, and renovations, offering real-time readings in various formats. Get professional-grade accuracy for all your angled surface needs.

**Highlights:** Precise angle measurement, Vertical and horizontal orientations, Multiple measurement units (degrees, radians, gradians), Target angle alerts with audio/vibration, Real-time precision readings, Apple Watch support with haptic feedback

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Protractor Weekly | $4.99 | per 7 days |
| Protractor Weekly with Trial | $6.99 | per 7 days |
| Protractor Weekly with Trial | $8.99 | per 7 days |
| Protractor Annual | $39.99 | per year |


### Roo Data Motorsport

[App page](https://appshunter.io/ios/app/roo-data-motorsport/id6759205374)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Protractor Angle Measure Tool free?

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

### Is Roo Data Motorsport free?

Roo Data Motorsport is free to download, with no in-app purchases.

### Do Protractor Angle Measure Tool or Roo Data Motorsport have ads?

Neither Protractor Angle Measure Tool nor Roo Data Motorsport shows ads.

### Which is updated more often, Protractor Angle Measure Tool or Roo Data Motorsport?

Protractor Angle Measure Tool ships an update monthly, and Roo Data Motorsport monthly. Most recently, Protractor Angle Measure Tool was updated on October 31, 2026 and Roo Data Motorsport on October 31, 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.*