iSA is an application for mobile devices that allows the surgeons who have operated on you to have a closer follow-up of the evolution at home during the postoperative period of your intervention. In this way you can better control your situation and make the most appropriate decisions for a safer and more comfortable evolution. This application is personalized with your personal data and the intervention that has been performed. In addition, every day it will ask you for information about your progress to send to your surgeon. With this data, the surgeon's team or the application will send you comments and advice about the postoperative period of your intervention.