Best-selling blood pressure app is 'so inaccurate it gives false warnings 80% of the time - putting people's health at risk'

Best-selling blood pressure app is 'so inaccurate it gives false warnings 80% of the time - putting people's health at risk' Scientists from Johns Hopkins University revealed the app called Instant Blood Pressure - which has been downloaded more than 100,000 times - gives inaccurate readings. The Daily Mail