A free program for Android, by EXA Tools.

Photo Ruler is an application for measuring the length, width, and height of an object. It is useful for DIY projects or for any repair or renovation work. This application is designed to be used with a smartphone camera and it will provide the most accurate results. You can choose between the camera mode or the photo mode.

The first step is to use the settings to make sure that the camera is working correctly. The next step is to use the camera mode to take a picture of the object. Then, you will have to use the photo editor to make sure that the picture is correctly taken and to erase the background. After that, you will have to use the settings to choose the type of measurement. There are 3 options: length, width, and height.

After that, you will have to use the photo editor to choose the background. You can choose between the default background or the background from your photo.