# portier KeyOnTheGo vs Protractor Angle Measure Tool

The clearest difference is in-app purchases: portier KeyOnTheGo at none against Protractor Angle Measure Tool's 4. Protractor Angle Measure Tool's advantage is update cadence (monthly vs every 13 months). On price, ads, device support and iOS requirement 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. portier KeyOnTheGo asks for nothing beyond the download.

portier KeyOnTheGo ships an update every 13 months, Protractor Angle Measure Tool monthly. The most recent releases landed on October 28, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | portier KeyOnTheGo | Protractor Angle Measure Tool |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 42 MB | 77 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [portier Global Pty Ltd](https://appshunter.io/developer/1791711100) | [Appcellent](https://appshunter.io/developer/1870956141) |

## What reviewers say

### portier KeyOnTheGo

[App page](https://appshunter.io/ios/app/portier-keyonthego/id6740809294)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is portier KeyOnTheGo free?

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

### Is Protractor Angle Measure Tool free?

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

### Do portier KeyOnTheGo or Protractor Angle Measure Tool have ads?

Neither portier KeyOnTheGo nor Protractor Angle Measure Tool shows ads.

### Which is updated more often, portier KeyOnTheGo or Protractor Angle Measure Tool?

portier KeyOnTheGo ships an update every 13 months, and Protractor Angle Measure Tool monthly. Most recently, portier KeyOnTheGo was updated on October 28, 2026 and Protractor Angle Measure Tool on November 8, 2026.

---

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