Purpose: Cortex is a medical app that will open a convenient experience to users. The app aims to help users get healthcare even they are at their home, workplace, or anywhere. The users connect to professional doctors in all medical fields, such as both physical and mental health. The doctors provide accurate and professional instruction directly to the users. These benefits will not offer for emergency cases, but the users need to call the emergency number phone in an emergency case. In addition, the app helps users look for and make appointments with hospitals or clinics near their locations. Furthermore, users can access their medical records and send their information to in-person appointment places.