Smartphone ruler to measure the length of a small object.

When used in the first run when calibrated to the actual size of the ruler you can get accurate measurement results.

Features :
- Providing a measurement line
- Provide two measurement lines
- Measuring initialized with a double click
- Cm or inch settings
- Left and right grid layout

How to use :
1. Do not place a small object to be measured on smartphones and drop it on the side.
2. This value is displayed when you touch the screen to display the measurement line.