Cardiogram is a free heart rate monitor and symptom tracker for your Apple Watch. The app will automatically record and track your heart rate and pulse, as well as any other relevant data, such as blood pressure, sleep, exercise, and medication, in the app.

The data that is recorded in the app can be viewed and analyzed in several ways. You can view the information in a number of different ways, including a simple list, an interactive graph, and a detailed report. You can also export the data from the app to a file, and you can send the file to your doctor or other healthcare professional.