Cardiio Status

this app helps you measure your pulse (heart rate) using your phone camera, learn how the numbers relate to your general wellness, perform effective workouts to get in shape, and track your progress. • Save your heart rate measurements to the Apple Health app. *Upgrade to PRO to enjoy the full features of Cardiio ! Blood absorbs light.  By using your smartphone camera to capture tiny changes in reflected light from your finger, this app can calculate your heart rate. • ALWAYS hold your phone steady, keep still, and don’t talk during a measurement. • Cover the entire back camera lightly with your finger; Don't press too hard to avoid restricting blood flow to your finger.  If knowing your pulse rate is critical to your health, you need to have your pulse taken by a medical professional. this app is not intended to diagnose, prevent or treat any condition, or to be a substitute for professional medical care.  Every time your heart beats, the blood flow to your finger increases, causing more light to be absorbed.  Measurements and statistics are intended for informational and educational purposes only, to support general health and wellness.  The this app app has not been tested with individuals with health conditions, is not a clinical pulse oximeter and has not been cleared or approved by the U. S.  In between beats, less light is absorbed.  PC Magazine - "… Cardiio is simple, yet beautiful and pretty slick".  Cult of Mac - "this app is one of those apps that wows you.. ".  Food and Drug Administration.