The main functions of this software are: AR measuring distance, ruler measurement, flashlight, decibel meter, protractor, spirit level, compass, hanging picture calibration, measuring distance and other core functions. Using sensors provided by Android phones, combined with UI interactive interface, Provide users with software that can use their mobile phones as these tools anytime, anywhere. When there are no tools at hand, you can use this software to measure some parameters of the surrounding environment, which is convenient and fast.