Developer's DescriptionBy keuwlsoftA simple, but very handy on screen ruler. No Permissions, Free & No Ads.A simple, but very handy on screen ruler. No Permissions, Free & No Ads.Automatically sizes to most screens. However, check scaling with a normal ruler on first use. If it is not correct, touch CAL and stretch the ruler to the correct size.Centimeters and inches.Measure length between two markers.Copy to clipboard.