# Protractor Edge vs SK iFaster

The clearest difference is in-app purchases: SK iFaster at none against Protractor Edge's 2. SK iFaster also leads on ads (none vs shown). Protractor Edge's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Protractor Edge sells 2 one-off in-app purchases. SK iFaster asks for nothing beyond the download.

Protractor Edge ships an update every 6 weeks, SK iFaster every 3 weeks. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Protractor Edge | SK iFaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/protractor-edge-angle-measure/id1499078532/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 34 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 9+ |
| Developer | [向阳 杨](https://appshunter.io/developer/1174757734) | [Zhejiang Power Import&Export Co,.Ltd](https://appshunter.io/developer/1891946997) |

## What reviewers say

### Protractor Edge

[App page](https://appshunter.io/ios/app/protractor-edge-angle-measure/id1499078532)

This utility app functions as a precise digital protractor for measuring angles on your device. It offers a smart instrument for accurate angle measurement, supporting iPhone and iPad. The app is free to download and use.

**Highlights:** Precise angle measurement, Smart instrument, Digital protractor, Supports iPhone and iPad

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support for a cup of coffee | $1.99 | one-time |
| Ads-free experience | $1.99 | one-time |


### SK iFaster

[App page](https://appshunter.io/ios/app/sk-ifaster/id6761992694)

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

**In-app purchases:** none


## Frequently asked questions

### Is Protractor Edge free?

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

### Is SK iFaster free?

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

### Do Protractor Edge or SK iFaster have ads?

Protractor Edge shows ads; SK iFaster does not.

### Which is updated more often, Protractor Edge or SK iFaster?

Protractor Edge ships an update every 6 weeks, and SK iFaster every 3 weeks. Most recently, Protractor Edge was updated on October 7, 2026 and SK iFaster on October 24, 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.*