Precise Protractor, developed by STK Company, is a free measuring tool available on Android. It eliminates the need to carry a physical protractor and allows you to measure angles on the go. The app is powerful, precise, and easy to use, making it an ideal choice for anyone who needs to measure angles quickly and accurately.

To use Precise Protractor, simply turn on your phone and launch the app. Next, fit the object you want to measure onto the protractor displayed on the screen. Finally, touch the screen to measure the angle. With its intuitive interface and accurate measurements, Precise Protractor is an excellent tool for anyone who needs to measure angles on the go.