Surveyor Tools Free is a utility application designed for Android devices that leverages built-in sensors to provide detailed positional information about the user's surroundings. The app functions similarly to a traditional theodolite while offering additional features such as GPS location, altitude, elevation angle, horizon tilt angle, and azimuth angle. It features three distinct screens, including a main screen and two compass displays, one resembling a classic compass and the other presenting modern data metrics like magnetic field strength and accuracy.

The app displays a wealth of information on its main screen, including GPS coordinates, altitude accuracy, artificial horizon, and celestial data regarding the Sun and Moon. Users can calibrate the app using various celestial objects to switch between magnetic and astronomical directions. With capabilities to save location data and images of the current view, Surveyor Tools Free is suitable for various applications such as hiking, surveying, and observational astronomy. Note that the app is supported by advertisements.