# Protractor Edge vs Clinometer+

The clearest difference is ads: Clinometer+ at none against Protractor Edge's shown. Clinometer+ also leads on update cadence (every 2 months vs every 43 months) and ratings volume (1K vs 55). Protractor Edge's advantage is review sentiment (70% vs 48%) and iOS requirement (9.0 vs 17.6). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Protractor Edge sells 2 in-app purchases, starting at $1.99 per year and Clinometer+ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Protractor Edge against 4.5 for Clinometer+. That said, the two scores are not equally well evidenced: Clinometer+ has 1K ratings behind it against 55, so its average is the more settled of the two. Written reviews are what separate them: 70% of Protractor Edge's written reviews are positive against 48% of Clinometer+'s.

Protractor Edge ships an update every 43 months, Clinometer+ every 2 months. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Protractor Edge | Clinometer+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (55 ratings)](https://appshunter.io/ios/app/protractor-edge-clinometer/id1198499762/reviews) | [4.5 (1K ratings)](https://appshunter.io/ios/app/clinometer-plus/id1494068762/reviews) |
| Number of ratings | 55 | **1K** |
| Positive reviews | **69.6% of reviews** | 48.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 43 months | **Every 2 months** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 21 MB | 16 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [嵩 张](https://appshunter.io/developer/1091921941) | [Tue Nguyen Minh](https://appshunter.io/developer/434811167) |

## 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 |


### Clinometer+

[App page](https://appshunter.io/ios/app/clinometer-plus/id1494068762)

This utility app functions as a car inclinometer to help drivers understand road conditions for safer driving. It requires a car phone holder and offers a calibration feature for accurate readings on flat surfaces.

**Highlights:** Car inclinometer, Road condition analysis, Safe driving aid, Calibration feature, Easy to use

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features | $1.99 | one-time |

**What reviewers like**

- 👍 Cool app
- 👍 Useful for work
- 👍 Easy to use

**What reviewers complain about**

- 💰 Not free to use
- 🐛 Terrible calibration
- 🔍 Deceptive free features

**Reported bugs**

- Gave child a virus that searched for pornography
- Doesn't function at all

**Requested features**

- Ability to mount at any angle and calibrate
- Dampened response speed


## Frequently asked questions

### Is Protractor Edge free?

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

### Is Clinometer+ free?

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

### Which has better reviews, Protractor Edge or Clinometer+?

Protractor Edge and Clinometer+ are both rated 4.5 out of 5 on the App Store, from 55 and 1K ratings respectively.

### Do Protractor Edge or Clinometer+ have ads?

Protractor Edge shows ads; Clinometer+ does not.

### Which is updated more often, Protractor Edge or Clinometer+?

Protractor Edge ships an update every 43 months, and Clinometer+ every 2 months. Most recently, Protractor Edge was updated on October 11, 2026 and Clinometer+ on October 13, 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.*