Photo Protractor vs Protractor (Angle measurement)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Photo Protractor
This app functions as a digital protractor, allowing users to measure angles and radians directly from photos. Simply take a picture, position the measurement area, and adjust the lines to get precise readings. It's an easy-to-use tool for quick angle calculations.
- Measure angles from photos
- Display angles and radians
- Adjustable measurement lines
- Easy-to-use interface
- Take pictures for measurement
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分度器アプリです。【使い方】写真を撮ります。移動ボタンを押して、写真の測定部分を測定円の中心にスライドスライド。角度ボタン、始線ボタンで測定線をクルクル移動すれば角度とラジアンが表示されます。簡単でしょ。（＾＾）／ It is a protractor app. [How to use] it will take a picture. Press the Move button, and slide slide the measurement part of the photo in the center of the measuring circle. Angle button, you will see the angle and radian if twirl move the measuring line in the initial line button. It is easy. (^^) /
Protractor (Angle measurement)
Measure angles of objects using your device's camera. This utility app acts as a digital protractor, allowing you to accurately determine angles in real-world scenarios. Perfect for when a physical protractor is unavailable.
- Camera-based angle measurement
- Digital protractor functionality
- Measure angles of objects
- Real-world angle determination
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You are there when you need a protractor? Here is the absence of a protractor, try using a protractor app. You can measure the angle of the object is reflected in the camera protractor. Try using a protractor protractor various apps, app.
Screenshots
Verdict
The clearest difference is ads: Photo Protractor at none against Protractor (Angle measurement)'s shown. Photo Protractor also leads on rating (4.0 vs 3.6) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Photo Protractor holds the better App Store score, 4.0 against 3.6. Both are backed by a comparable volume of ratings — 40 and 10 respectively. Written reviews point the same way: 79% of Photo Protractor's written reviews are positive against 68% of Protractor (Angle measurement)'s.
Photo Protractor ships an update every 2 months, Protractor (Angle measurement) every 5 weeks. The most recent releases landed on October 20, 2026 and October 22, 2026 respectively.
| Parameter | Photo Protractor | Protractor (Angle measurement) |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (40 ratings) — better | 3.6 (10 ratings) |
| Positive reviews | 79.3% of reviews — better | 68.1% of reviews |
| Number of ratings | 40 — better | 10 |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 11 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Mayumi Kato | EONSOFT |
Customer experience
Photo Protractor
Protractor (Angle measurement)
Bugs and requests
Photo Protractor
Not enough reviews yet to summarise bugs or requests.
Protractor (Angle measurement)
Reported bugs
8 issues- Camera is always blurry
- Ads cover buttons
- App is a ghost app, cannot open
- Time limit makes it unusable
- Measures only in radians (free)
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- Protractor over camera view, no needle/indication
- App is difficult to use
- Hard to hold still without tripod
Requested features
10 requests- Ability to freeze image
- Ability to use photos for measurement
- Upload a still image and overlay protractor
- Improve accuracy with shaky hands
- Add option to take a picture and measure
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- Stabilize the camera
- Make numbers easier to read
- Remove time limit on free version
- Allow measurement in degrees for free
- Delete purchase history
In-app purchases
Photo Protractor
No in-app purchases
Protractor (Angle measurement)
No in-app purchases
Questions
Is Photo Protractor free?
Is Protractor (Angle measurement) free?
Which has better reviews, Photo Protractor or Protractor (Angle measurement)?
Do Photo Protractor or Protractor (Angle measurement) have ads?
Which is updated more often, Photo Protractor or Protractor (Angle measurement)?
Other comparisons
