The app has been developed in partnership with the department of mechatronics, optics and mechanical engineering informatics at the Budapest University of Technology, and uses color filters and mathematical modelling to diagnose levels of CVD. Some 300 million people around the world have CVD, but according to Samsung the majority are unaware of their condition, so the app could make TV-viewing a richer experience for those who've been watching just fine for years. Or it could just be a novel app to test out when there's nothing else on. It's available from the Smart TV App store, Google Play and the Galaxy App Store for Galaxy Smartphones S6 and newer.