Natural Cycles has had its problems. There have been questions raised over its efficacy and reports of unwanted pregnancies . But you could argue that one of the reasons women have turned to apps like Natural Cycles for contraception or period trackers like Clue in the first place is because of how little we know about our bodies. Knowledge is power and women can’t make informed choices without information. Drug companies have always funded medical research, so what’s the difference if contraceptive apps are stepping in to fill in the gaps where they left off?