BY VIEWCAST    UPDATED June 10, 2025
Protractor is a handy app designed to make measuring angles easier and more accessible. Whether you're working on your homework or tackling a DIY project, Protractor has got you covered. Let's dive into what makes this app unique and why it's a powerful tool for students, teachers, and hobbyists alike.
The biggest advantage of using Protractor is its convenience. Gone are the days when you had to carry around a physical protractor everywhere. With this app, you have an accurate measuring tool right in your pocket. It's perfect for those moments when you need to measure an angle but have forgotten your physical protractor at school or home.
An outstanding feature of Protractor is its user-friendly interface. It allows you to measure angles quickly and efficiently. The app mimics the functions of a traditional protractor but adds the convenience of digital accuracy. Whether you're working on math problems that require precise angle measurements or need to ensure your DIY project components are aligned correctly, this app simplifies the process.
Protractor comes packed with features that make it a standout tool:
One minor limitation is the absence of a wide-angle lens camera option. However, this doesn't significantly impact the functionality of the app for standard geometry needs. The developers have clearly put a lot of thought into creating an app that fulfills the primary requirements of its users.
Protractor isn't just for students. Anyone involved in activities that require angle measurements can benefit from this app. It's incredibly useful for:
Overall, Protractor acts as a versatile tool that fits various applications, making it much more than just a digital version of a traditional protractor.
Is Protractor really free?
Yes, the app is completely free to use and has no ads, providing a smooth and uninterrupted user experience.
How accurate is Protractor compared to a physical protractor?
The app is designed to provide very accurate angle measurements, rivaling those of a physical protractor.
Can Protractor be used for subjects other than math?
Absolutely! It's useful for any task requiring precise angle measurements, including DIY, art, and design projects.
Are there any limitations to the Protractor app?
The app does not currently support a wide-angle lens camera, but this does not significantly affect its functionality for most users.
Protractor is a user-friendly, reliable, and free tool that brings the functionality of a traditional protractor to your smartphone. It's perfect for students, teachers, hobbyists, and anyone needing accurate angle measurements on the go. Download Protractor today and simplify your angle measurement tasks with ease!
Protractor is primarily a mobile app designed for smartphones. However, you can run Protractor on your computer using an Android emulator. An Android emulator allows you to run Android apps on your PC. Here's how to install Protractor on your PC using Android emuator:
Visit any Android emulator website. Download the latest version of Android emulator compatible with your operating system (Windows or macOS). Install Android emulator by following the on-screen instructions.
Launch Android emulator and complete the initial setup, including signing in with your Google account.
Inside Android emulator, open the Google Play Store (it's like the Android Play Store) and search for "Protractor."Click on the Protractor app, and then click the "Install" button to download and install Protractor.
You can also download the APK from this page and install Protractor without Google Play Store.
You can now use Protractor on your PC within the Anroid emulator. Keep in mind that it will look and feel like the mobile app, so you'll navigate using a mouse and keyboard.