Version 2.0 of the application, in development since 2015, is based on functional prototypes, which were tested by more than 200 patients of the Sangre Azul clinic - the pioneer of invisible orthodontic treatment in Slovakia. The StrojCHECK application by Sangre Azul is an intelligent application developed by doctor Andrej Thurzo, MD, PhD, MPH, MHA. The app helps to follow the necessary routines during treatment with an invisible braces such as Invisalign. After the experience from the developm