The idea is based on the dental radiographic technique. This app gives you the opportunity to turn your smart phone into a source of professional photos and create your own database with reliable before and after pictures so that you can keep track of your objects. Photo documentation is applied in a wide variety of spheres from medicine and dentistry to fashion, therefore there is no excuse for relativity. Paralleling Technique is a helpful and easy to use app. How to use? Choose a constant part of your object and place it between the vertical lines at the top of the screen every time you take a photo of the same object.