This project aims at designing and implementing a mobile application for the early diagnosis of the retinoblastoma. This is one of the main objectives of the organization. Furthermore, this app could help to publicize the disease and its most common symptoms, namely, the leukocoria (also known as white pupillary reflex). Since this is a rare disease, most people do not know its symptoms and go to the doctor too late. An early diagnosis can not only save lives, but also avoid enucleation.