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Android Apps > Tools > Protractor
Protractor icon

Protractor

1.7.00
4.18
5,649 reviews
1,000,000+
Downloads
Free

Check angle and slope. Use the camera view !!!

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About Protractor

Protractor is a tools app developed by EXA Tools.

How many times has Protractor been downloaded?

Protractor has been downloaded 1.6 million times. In the last 30 days, the app was downloaded 21 thousand times.

What is the rating of Protractor?

Protractor is rated 4.18 out of 5 stars, based on 5.6 thousand ratings.

Is Protractor free?

Protractor is free to download. The APK download size is 6.92 MB. The latest version available is 1.7.00. The last update was on January 14, 2026.

What are the requirements for Protractor?

Protractor requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play February 2016.

Description

More data about Protractor

Price Free to download
Total downloads 1.6 million
Recent downloads 21 thousand
Rating 4.18 based on 5.6 thousand ratings
Ranking Not ranked
Version 1.7.00
APK size 6.92 MB
Number of libraries 13
Designed for Android 5.0+
Suitable for Everyone
Ads Contains ads

App Performance Report

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Protractor compared with similar apps

Keywords missing from this app

Level App Tool Bubble Measuring Device Surface Ruler Finder Clinometer Meter Calibration Phone Features Spirit Tools Support Horizontal Recent Vertical Free Easy Display Laser Precise Pitch Digital Set Leveling Target Frame Measured Plane Added Smart Sensor

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Google Play Rating history and histogram

4.1K
260
150
260
790

Downloads over time

Protractor has been downloaded 1.6 million times. Over the past 30 days, it averaged 690 downloads per day.

Changelog of Protractor

Developer information for EXA Tools

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Comments on Protractor for Android

★★★★☆ Deon Van der Westhuizen · Jul 25, 2021
So far so good. I like the clear markings. The adds only show after I used the app which is not a problem. I would like to see an indication of which side is higher when I work with small inclinations.
★★★★★ j sykes · Nov 10, 2023
Brilliant design. Also comes with a visual plumb bob. I love the way the camera can be used to view a room or object. The protractor outline overlays the camera image and can be used to measure angles, hang pictures, and predict location of wall studs.
★★★★★ Su · Feb 5, 2021
Really neat. The lock and photo features are handy. Plumb tool is also cool, although it briefly confused me until I found the toggle back to basic angle measurement. Adverts are subtle enough not to interfere. Thank you.
★☆☆☆☆ Seth K · Jan 29, 2023
This app makes no sense. In one mode you can only measure an angle against a horizontal line. Another option lets you use the camera and adjust 2 angle lines independently. "This means you snap a photo then accurately measure it" is what a sane person would think. Nope. You have a live video feed and have to adjust 2 angles live while aligning the fulcrum live while trying to hold the camera steady, live. So it's about as accurate guessing the angle, but slower and more frustrating.
★☆☆☆☆ Gereth Dittrick · Nov 30, 2021
Was expecting a protractor not a level. Very misleading

Google Play Rankings for Protractor

This app is not ranked

Technologies used by Protractor

Protractor is requesting 14 permissions and is using 14 libraries.
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