It performs measurements in any direction and plane in 3D space. KEY FEATURES: Measurements Modes: Length, Angle, Area, Diameter, Measure objects in any direction or plane in 3D space without the restriction to hold camera parallel to the plane, Length value assigned to all the ruler lines in all modes, Camera snapshot, auto-focus and flashlight, Show 3D grid in calibration, Customizable line width, point size, text size,3 predefined reference object(Credit card, A4 paper and A3 paper),Show verticality and tilt angle of device when camera is on,Keep Screen Awake,Add/Delete measurements, 6 Measurement Units: m, cm, mm, in, yd, ft.