Ruler app includes the following functions:unit converter (mm to inches, centimeters to inches), calculation of the length, straight line, calculation of area, defining the thread pitch, caliper, ruler online, etc. Ruler (tape measure) - is beautiful, functional and easy to use tool on every smartphone or tablet. Screen ruler has inflicted strokes (scale), multiple units of length (centimeter, meter, inch) used to measure the distance. Electronic ruler Features: - accuracy of measurement; - easy to use; - stylish design; - simple calibration; - set the units: cm, mm, inch; - measurement of the length (with hold function) either side of the device; - graph paper, vertical and horizontal line; - measurement in 4 modes: point, line, plane, level; - translated to 15 Languages. Tap the screen to start using the best multi-touch measuring system and find size of all curious objects around you.