When you need a ruler is very?
When the ruler is not here, try using smartphone.
The ruler can measure the length of objects.
Ruler is a simple application which converts your Android phone to a small ruler. You can measure things right on your Android device screen. This application supports dimensions in centimeters and inches.
Its simple user-friendly design Photo Ruler allows you to measure things just as conveniently and precisely as with a traditional ruler or tape measure.