Comparison

iPinPoint vs Protractor Edge

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iPinPoint

This utility app allows users to measure angles, distances, and areas using their device's camera or GPS. It supports various geometric calculations and orthopedic measurements, with an optional Pro version for enhanced features.

Highlights
  • Measure angles and lengths
  • Calculate circle radius, area, and perimeter
  • Compute triangle area and perimeter
  • Orthopedic angle measurements (Cobb, Baumann)
  • Camera and GPS integration
  • Zoom feature (Pro version)
  • Project creation (Pro version)
Features
Read full description

iPinPoint application is used in the Columbia Public Schools in Columbia, Missouri, where students record the angle on pictures that were taken around the school. Here is the link: http://cpsipads.blogspot.gr/2012/06/app-review-ipinpoint.html iPinPoint application is used in the measurement of Hallux Valgus Angles. "...One smartphone application (iPinPoint) was reliable for measurements of the hallux valgus angles by either experienced or nonexperienced observers.." Here is the link: https://pubmed.ncbi.nlm.nih.gov/28231958/ Upgrade to version Pro and enable the zoom feature and the feature to create projects. With iPinPoint you can use the built in camera or the GPS device to: 1) Compute the magnitude of an angle or the length of an object 2) Compute the length of different objects simultaneously 2) Compute the radius, area and perimeter of any circle 3) Compute the area and perimeter of any triangle 4) Compute various angles that are important in Orthopedics, e.g., Cobb, Baumann, and Humerotrochlear angle iPinPoint is an easy to use app to measure the magnitude of angles and length of objects. Use the iPhone camera to pinpoint the dimensions of the object of interest. iPinPoint will give the magnitude of an angle, the length of the object, the radius/area/perimeter of a circle, and the area/perimeter of a triangle You may visit our website for a preview of the zoom feature.

About

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.

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
Read full description

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

Screenshots

iPinPoint4 screens
Protractor Edge2 screens

Verdict

The call

The clearest difference is review sentiment: Protractor Edge at 70% against iPinPoint's 0%. Protractor Edge also leads on ratings volume (55 vs 2) and iOS requirement (9.0 vs 12.0). iPinPoint's advantage is rating (5.0 vs 4.5) and update cadence (every 11 months vs every 43 months). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. iPinPoint sells 6 one-off in-app purchases and Protractor Edge sells 2 in-app purchases, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

iPinPoint holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Protractor Edge has 55 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 0% of iPinPoint's written reviews are positive against 70% of Protractor Edge's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

iPinPoint ships an update every 11 months, Protractor Edge every 43 months. The most recent releases landed on September 25, 2026 and October 16, 2026 respectively.

Scorecard5 real differences · 5 level
iPinPoint versus Protractor Edge: the parameters behind the verdict, then further details
ParameteriPinPointProtractor Edge
PriceFreeFree
Rating5.0 (2 ratings) — better4.5 (55 ratings)
Positive reviews0.0% of reviews69.6% of reviews — better
Number of ratings255 — better
Update frequencyEvery 11 months — betterEvery 43 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.09.0 — better
Further details — not scored
Size25 MB21 MB
Age rating4+4+
Developeri-SmartSolutions嵩 张

Customer experience

iPinPoint

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Protractor Edge

All ratings55 ratings
Positive85.5%
Neutral5.5%
Negative9.1%
Written reviews46 reviews
Positive69.6%
Neutral8.7%
Negative21.7%

In-app purchases

6 purchases

iPinPoint

One-time6
  • Calculate perimeter/area of a circle$0.99
  • Calculate the area/perimeter and many more of a triangle$0.99
  • Calculate the elbow angle$0.99
Show 3 more
  • Crop Image$1.99
  • Upgrade to iPinPoint Pro$2.99
  • Calculate area of any surface$2.99
2 purchases

Protractor Edge

Subscriptions1
  • Premium Access7 Days trial$1.991 Year
One-time1
  • Remove Ads$0.99

Questions

Is iPinPoint free?
iPinPoint is free to download, with in-app purchases available.
Is Protractor Edge free?
Protractor Edge is free to download, with in-app purchases available.
Which has better reviews, iPinPoint or Protractor Edge?
iPinPoint is rated higher. iPinPoint averages 5.0 out of 5 from 2 ratings, while Protractor Edge averages 4.5 from 55 ratings.
Do iPinPoint or Protractor Edge have ads?
Both iPinPoint and Protractor Edge show ads.
Which is updated more often, iPinPoint or Protractor Edge?
iPinPoint ships an update every 11 months, and Protractor Edge every 43 months. Most recently, iPinPoint was updated on September 25, 2026 and Protractor Edge on October 16, 2026.

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