# Protractor Edge vs ACCMOTOR

The clearest difference is in-app purchases: ACCMOTOR at none against Protractor Edge's 2. ACCMOTOR also leads on ads (none vs shown) and update cadence (every 5 days vs every 43 months). Protractor Edge's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 16.0). On price there is nothing between them.

Both are free to download. Protractor Edge sells 2 in-app purchases, starting at $1.99 per year. ACCMOTOR asks for nothing beyond the download.

Protractor Edge ships an update every 43 months, ACCMOTOR every 5 days. The most recent releases landed on October 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Protractor Edge | ACCMOTOR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (55 ratings)](https://appshunter.io/ios/app/protractor-edge-clinometer/id1198499762/reviews)** | — |
| Number of ratings | **55** | — |
| Positive reviews | 69.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 43 months | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 21 MB | 6 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [嵩 张](https://appshunter.io/developer/1091921941) | [东莞市比高德智能科技有限公司](https://appshunter.io/developer/1549181195) |

## What reviewers say

### Protractor Edge

[App page](https://appshunter.io/ios/app/protractor-edge-clinometer/id1198499762)

Measure angles directly on your device without taking photos or placing the angle on screen. This app offers a unique and efficient way to determine degrees, saving you time with its handy assistant functionality.

**Highlights:** Direct angle measurement on device, Intuitive line dragging interface, Measures angles in photos (Premium), Measures from camera view (Premium), Ad-free experience (Premium)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $1.99 | per year |
| Remove Ads | $0.99 | one-time |


### ACCMOTOR

[App page](https://appshunter.io/ios/app/accmotor/id6767138255)

**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 ACCMOTOR free?

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

### Do Protractor Edge or ACCMOTOR have ads?

Protractor Edge shows ads; ACCMOTOR does not.

### Which is updated more often, Protractor Edge or ACCMOTOR?

Protractor Edge ships an update every 43 months, and ACCMOTOR every 5 days. Most recently, Protractor Edge was updated on October 16, 2026 and ACCMOTOR on September 18, 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.*