Augmented Reality Protractor is a free utility and tool application available on Android. Developed by X64h, this application allows you to measure angles and inclinations without having to physically reach the object you want to measure.

With the help of the reticle, align the feature of interest and press the lock button to keep the reading still. The app also has a camera icon that lets you switch between cameras or disable the camera. However, when measuring horizontal lines, it's important to be perpendicular to the segment to get accurate measurements.

Additionally, the app works as a traditional inclinometer, displaying the angle to the vertical and in the x-y plane. The app also has a zoomable view and contrast selection for light and dark ambiences.

Overall, Augmented Reality Protractor is a useful tool for measuring angles and inclinations. However, it's important to note that it uses internet permission to show adMob ads.