血圧測定用アプリの安全性は未確認？

下記の記事が出ている。

　Health warning over blood pressure monitoring apps as doctors warn they are 'untested, inaccurate and potentially dangerous'
　Daily Mail: 26 December, 2014
　http://www.dailymail.co.uk/sciencetech/article-2887791/Health-warning-blood-pressure-apps-doctors-warn-untested-inaccurate-potentially-dangerous.html