Protractor Edge vs Clinometer+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Protractor Edge
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.
- Direct angle measurement on device
- Intuitive line dragging interface
- Measures angles in photos (Premium)
- Measures from camera view (Premium)
- Ad-free experience (Premium)
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A simple protractor. Just put your device on the angle you want to measure. Then drag the two lines to align the both sides of the angle. The degrees will be there. It is different from other protractor apps. This is a new way to measure angles. It requires neither taking photo nor putting the angle above the screen. Now start using this handy assistant to measure angles which will save you a lot of time. ------------------------------------- PREMIUM ACCESS SUBSCRIPTION - Measure the world from camera - Measure angles in photos - No Ads - The subscription is $0.99 yearly with trial - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that service, where applicable - Terms of use: https://service.notationpad.com/terms_service.html
Clinometer+
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.
- Car inclinometer
- Road condition analysis
- Safe driving aid
- Calibration feature
- Easy to use
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Note: You will need a car phone holder to use with this app. This app helps you to understand road conditions to ensure safe driving. It is easy to use, simply put your phone on a holder and stick it to your car and you are ready to go. The app provides a calibrate button to adjust the readings when your car is on a flat surface.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Protractor Edge | Clinometer+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (55 ratings) | 4.5 (1K ratings) |
| Positive reviews | 69.6% of reviews — better | 48.1% of reviews |
| Number of ratings | 55 | 1K — better |
| Update frequency | Every 43 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 21 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | 嵩 张 | Tue Nguyen Minh |
Customer experience
Protractor Edge
Clinometer+
Bugs and requests
Protractor Edge
Not enough reviews yet to summarise bugs or requests.
Clinometer+
Reported bugs
2 issues- Gave child a virus that searched for pornography
- Doesn't function at all
Requested features
2 requests- Ability to mount at any angle and calibrate
- Dampened response speed
In-app purchases
Protractor Edge
- Premium Access7 Days trial$1.991 Year
- Remove Ads$0.99
Clinometer+
- Pro Features$1.99
Questions
Is Protractor Edge free?
Is Clinometer+ free?
Which has better reviews, Protractor Edge or Clinometer+?
Do Protractor Edge or Clinometer+ have ads?
Which is updated more often, Protractor Edge or Clinometer+?
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