***PRO version has infinite heart rate tracking without any advertisements *** Instant Heart Rate is the most accurate Heart Rate Monitor app for any smartphone and it doesn't require any external hardware. Use it for optimizing your exercise and also to monitor your progress. Install it today and keep fit. Accuracy is continually analyzed by fitness trainers, coaches and 25 million consumers like you. Put the tip of the index finger on phones camera and also in a couple of moments your Heart Rate is going to be displayed. A real time chart will reveal your each heart beat. It utilizes your phones built-in camera to monitor colour fluctuations on the fingertip that are directly connected to your pulse. This is exactly the identical technique that clinical pulse oximeters utilize. Now you've got an opportunity to track your fitness and wellness every-time with just your phone. Your resting heart rate gives you a view in your hearts wellbeing. Enables: Heart rate measurements Actual time PPG chart - see that your each heart beat History NOTE: Works best on apparatus with flash. On other apparatus it needs to be employed with good lighting.