Protractor

Name: Protractor
Rating: 4.24 (5775 reviews)
Author: EXA Tools

By: EXA Tools

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

Features & Capabilities

Protractor is a versatile Chrome extension acting as a smart instrument to measure angles and slopes using your device's camera. It offers two free measurement modes: Touch Measure, where you set angles by touching the screen with the camera view active, and Plumb Bob Measure, which helps determine slopes via a pendulum that requires calibration.

For advanced users, the Premium Polygon Measurement mode enables drawing shapes directly on your screen or photos to check all angles accurately. This mode supports color customization, helper lines, and multiple angle units. Screenshots can be taken in all modes, allowing you to save and share your measurements effortlessly. Whether measuring buildings, mountains, or any objects around you, Protractor combines convenience with precision for on-the-go angle and slope checks.

User Growth & Download Statistics

App Photography

By:

EXA Tools

Downloads:

1,568,220 4.34K

Rating:

4.24

(5,775) 4 new ratings

Version:

1.6.00 Last updated: 2026-01-14

Version code:

Creation date:

2016-02-08

Publisher country:

Permissions:

android.permission.CAMERA Very high risk
com.google.android.gms.permission.AD_ID Moderate risk
android.permission.ACCESS_ADSERVICES_AD_ID Low risk
android.permission.ACCESS_ADSERVICES_ATTRIBUTION Low risk
android.permission.ACCESS_ADSERVICES_TOPICS Low risk
android.permission.FOREGROUND_SERVICE Low risk
android.permission.INTERNET Low risk
android.permission.WAKE_LOCK Low risk
com.android.vending.BILLING Low risk
com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE Low risk

Size:

11.89MB

Email:

ex*****@gmail.com

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-06-04

Compare stats and ranking:

Ranking

# 51,468 ▼ 49

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

EXA Tools

Google Play Store

https://play.google.com/store/apps/details?id=com.exatools.protractor

Email:

ex*****@gmail.com

Website:

https://examobile.com

User Reviews

Protractor is widely praised as a useful, free, and easy-to-use app with accurate measurements and a handy camera feature. Users appreciate its intuitive design and convenience for tasks like aligning solar panels. However, reviews repeatedly flag drawbacks: intrusive ads (especially during camera use), inconsistent angle detection, export issues (exported screenshots as PDFs not including the background), and UI friction that can hinder closing prompts. Overall, strong core functionality but notable annoyances.

Pros

Camera feature is very useful
Easy to use and user-friendly
Very accurate results
Works well and is free to use
Handy and convenient tool

Cons

Intrusive ads, especially during camera use
Angle/gravitation detection is inaccurate
Screenshot export saves as PDF and doesn't capture the background
Cannot close without tapping Add (UI friction)
Some users find it hard to use / not intuitive

Recent reviews

In what situation would motion controlled protractor be any use? And these scammers sell your data to 100s of companies even if you don't consent to it and if you do it's in the 1000s