Instant Blood Pressure lets you measure your blood pressure using only your iPhone - no cuff required. It uses a patent-pending process developed by a team from the Johns Hopkins University--a world leader in health innovation. Measurements take less than 50 seconds and produce a systolic, diastolic, and heart rate measurement.At this time, results may vary for different users and some users may experience inaccurate measurements. Please bear with us as we improve this exciting new technology.Instant Blood Pressure is for entertainment purposes only. It is not an FDA cleared medical device. Consult a doctor if you have any health concern.