More than half a million people die from heart disease in the U.S. every year. The main problem is that most people know little to nothing about what is going on with their heart outside of a yearly checkup with their Cardiologist. The aim of the Cardi app + patch is to help those living with heart disease feel safe by monitering their heart rate, oxygen and hydration levels, which are key contributing factors to heart health. The Cardi patch is personalized through the app for the user, to detect when levels are low, which sends them and their loved ones an alert. When users start to feel irregular heart rythms, they can start to record an EKG and send it to their doctor as well. In addition, this app features a profile where users can store their primary doctor information, allergies, and any medicine that is taken.