Personal heart rate measuring application. Features: - Measures your heart rate using phone's camera. - Saves and displays history. You can add comments for each history item. Manual: - Place the tip of your index finger on the camera so it completely covers the lens. - Press 'start' button. The readings will appear in a few seconds. If you are getting wrong readings (or none at all), please try adjusting the position of your finger on the camera lens. Also, please be sure to take measurements in a well-lit environment if your device does not have a torchlight.