Digital Angle Finder vs Protractor Edge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Digital Angle Finder
Measure angles precisely using your device's sensors. It functions as both a protractor and a 3D angle meter, allowing you to determine angles between surfaces or lines on a plane with high accuracy. Save your measurements by taking photos with the angle recorded.
- Precise angle measurement
- 3D angle measurement
- Protractor mode
- Save measurements with photos
- High accuracy (1-degree error)
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Digital Angle Finder is an app for precise measurement of angles, simply by moving your device. The "Digital Angle Finder" app measures the angle of the device, using the accelerometer and gyroscope. Just place your device against two surfaces in turn and "Digital Angle Finder" will give you the angle between them. In the protractor mode you can also determine the angle between lines on a plane: in order to do so align the edge of your device alternately against the sides of the angle. The accuracy of angles measurement is rather high: the error is only one degree! You'll appreciate the ability to save the measurement by taking a photo with the measured angle recorded on it. We are sure that you will like the design of this app. Digital Angle Finder is an app that adds a new feature to your device which you have never imagined!
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
Screenshots
Verdict
The clearest difference is in-app purchases: Digital Angle Finder at none against Protractor Edge's 2. Digital Angle Finder also leads on ads (none vs shown) and update cadence (every 2 months vs every 43 months). Protractor Edge's advantage is review sentiment (70% vs 56%) and iOS requirement (9.0 vs 15.0). On price, rating, ratings volume and device support 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. Digital Angle Finder asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.1 for Digital Angle Finder against 4.2 for Protractor Edge. Both are backed by a comparable volume of ratings — 237 and 94 respectively. Written reviews are what separate them: 56% of Digital Angle Finder's written reviews are positive against 70% of Protractor Edge's.
Digital Angle Finder ships an update every 2 months, Protractor Edge every 43 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Digital Angle Finder | Protractor Edge |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (237 ratings) | 4.2 (94 ratings) — better |
| Positive reviews | 55.8% of reviews | 69.6% of reviews — better |
| Number of ratings | 237 — better | 94 |
| Update frequency | Every 2 months — better | Every 43 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 80 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | ALEXEY BRILEV | 嵩 张 |
Customer experience
Digital Angle Finder
Protractor Edge
Bugs and requests
Digital Angle Finder
Reported bugs
8 issues- No measurements detected
- App doesn't work
- Incorrect measurements (e.g., 172 degrees, 2 and 178 degrees, 179 degrees)
- App doesn't work on vertical angles
- New update ruined the app, only works on still surfaces
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- App is outdated and doesn't work on older iPhones (iPhone 6s Plus)
- App is slow to process measurements
- App is unintuitive to use
Requested features
7 requests- Add a spirit level function
- Add a function to start and end measurement by pressing a button
- Ability to manually measure angle on a photo
- Display mode for surface vs. edge measurement
- Clarify zero point and measurement range for length measurement
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- Add vibration signal for ready and measured states
- Add ability to measure angle directly in photos
Protractor Edge
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Digital Angle Finder
No in-app purchases
Protractor Edge
- Premium Access7 Days trial$1.991 Year
- Remove Ads$0.99
Questions
Is Digital Angle Finder free?
Is Protractor Edge free?
Which has better reviews, Digital Angle Finder or Protractor Edge?
Do Digital Angle Finder or Protractor Edge have ads?
Which is updated more often, Digital Angle Finder or Protractor Edge?
Other comparisons
