Use your smartphone screen as a ruler app or as a tape measure app, and measure the length/size of small objects in centimeters, inches, millimeter. You can easily measure the length or size of the object by placing it at the screen and adjusting the measuring area tightly. We make sure to get exact measurements but there are chance of error, so there is a calibration settings, it will easily adjust the error by stretching ruler in calibration settings

Key features
• Measure the objects that fits into the screen
• Simple and beautiful design
• Always work when no stationary around
• Measures in mm, cm, inches (decimal or fraction)
• Measures length on both side of screen at the same time
• Has an easy to use calibration mode for accurate adjustment of the measuring length.
• Calibrated already at the factory. If that is not good enough it is possible to calibrate by using another.
• Easy to use
• smart ruler cm, mm ruler
• Simple calculator
• Advance calculator
• Conversion tools ( Area ,Length , Weight ,Temperature)