Discover the data behind the first and only birth control app. Our mission is to pioneer women’s health with research and passion, read on to find out how we make it happen with the science behind our birth control effectiveness.
Natural Cycles is 93% effective with typical use and 98% effective with perfect use. Our birth control effectiveness comes from an analysis of over 15,000 women. The study looked at all possible reasons women become pregnant when using Natural Cycles. This includes having unprotected sex on a red day, to the app wrongly giving a green day, to a condom breaking.
Did you know that we have a dedicated team committed to research? We regularly contribute with scientific involvement in the historically overlooked area of fertility and women’s health. Check out our published studies on Natural Cycles below:
*Percentage of typical/perfect users who did not get pregnant with the method over 1 year of use.
Reference: Contraceptive Technology (Table 26 - 1). 21st Edition, 2018 —>
Source: Trussell J . Contraceptive Efficacy. In Hatcher R A, Trussell J, Nelson A L , Cates W, Kowal D, Policar M. Contraceptive Technology: New York NY: Ardent Media, 2018—>
We are proud to work with leading medical advisors who bring their extensive knowledge and backgrounds in female health to Natural Cycles.
A Senior Consultant in Obstetrics and Gynaecology at Danderyd Hospital and researcher at the Karolinska Institute, Dr Kopp Kallner is secretary of the Board of the Swedish Society of Obstetricians and Gynecologist. She is also a member of the Advisory Board of Natural Cycles. Dr Kopp Kalner works with Natural Cycle in designing and performing new research on fertility monitoring, contraception and mHealth.
In 2018 the US Food and Drug Administration (FDA) cleared Natural Cycles as a medical device for use as a digital method of birth control.Download
In Europe, Natural Cycles is the first CE-marked Class II medical device (CE0123) for use as a method of birth control.
We are ISO13485 certified, working to the highest level of safety and quality, with a quality management system at our core.Download