World’s First Approved Birth Control App: Will It Push Out The Pill?

http://www.today.com/health/natural-cycles-world-s-first-approved-birth-control-app-t113857
http://nordic.businessinsider.com/the-worlds-first-approved-birth-control-app-is-now-heading-for-the-us--to-replace-the-pill-with-mathematics-2017-5/