The company's cardio tracking application allows users to analyze and graph heart rate measurements, track changes to resting heart rate, and monitor heart rate spikes related to stress, diet, or exercise. It also detects heartbeats, tracks sleep and fitness, and can be used with wearable devices like Apple Watch and Android Wear. By providing valuable insights into heart health, Cardiogram helps users prevent stroke and other heart-related issues. Users can easily share their heart rate graphs via email or social media platforms like Twitter and Facebook.