Currently, all citizens can suffer a heart attack, whether you are young or an adult, because it happens suddenly and as we know it is a fatal emergency that can happen anywhere, with one of the consequences being loss of consciousness. In addition, in order to prevent it, you need better control with doctors, but as we know, a heart attack can happen to us on any day and at any time. For this reason, a mobile application was designed to help prevent people suffering from heart problems and have a better follow-up of the check-ups and daily activities that they carry out. In addition, as the pulse sensor used with Arduino is connected to the application via Bluetooth, it will be able to alert trusted people that you are in danger and will also send a message to the nearest hospital. In this work, the Scrum methodology was used for the development and the Balsamiq tool for the design of the prototype. The results obtained from the research will be to prevent heart attack and have greater security where you are.