Your heart rate is a key indicator of your overall health. With the Heart Fitness app from SensCare, you can keep abreast of your heart rate without having to meet up with your doc. After relaxing in a sitting position for around five minutes, simply cover your smart phone camera with your fingertip and wait for the finger detection gauge to turn green. Your heart rate in beats per minute will then be displayed, allowing you to evaluate and track your heart health. Available on Apple iTunes Store.