Photo Protractor

Name: Photo Protractor
Rating: 4 (40 reviews)
Author: Mayumi Kato

By: Mayumi Kato

Utilities

Features & Capabilities

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. (^^) /

User Growth & Download Statistics

App

By:

Mayumi Kato

Rating:

4.00

(40)

Version:

2.6 Last updated: 2016-01-09

Version code:

841442138

Creation date:

2013-09-20

Compatible devices:

Size:

11.14MB

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-06

Compare stats and ranking:

Ranking

# 224,543 ▼ 574

For Developers

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Contact the developer

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Developed by:

Mayumi Kato

Apple Apps Store

https://apps.apple.com/us/app/photo-protractor/id705832869

User Reviews

Overall, reviews consistently praise Photo Protractor for being easy to use and effective at measuring angles from photos or drawings. Users like the simple, straightforward controls, the ability to move and reset the protractor, and the steady camera that helps produce accurate measurements. The app is also appreciated for being lightweight and free with no ads. Common requests center on feature additions rather than core functionality: in-app zoom, more image editing options such as resizing, and options to customize or change the background. In short, it’s dependable for quick, on‑the‑go angle work and valued for its simplicity.

Pros

Easy to use with simple, straightforward controls for measuring angles.
Reliable angle measurement from photos or drawings with a clear overlay.
Steady camera helps taking stable pictures for accurate measurements.
No ads and free to use.
Movable/adjustable protractor with the ability to reset starting angles.

Cons

Lacks in-app zoom functionality (multiple reviews request zoom).

Recent reviews

doesn’t work in iOS 26.5: camera doesn’t open. Accessing photos, results in a black blank screen. too bad I thought this app would really be useful to me.