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Discover the science behind the world’s first birth control app

Regulated medical device

One of the main differences between Natural Cycles and other apps is we are a regulated medical device. Not only do we regularly publish studies on the effectiveness of our product, and undergo regular audits, but we have rigorous processes in place that protect our users and their data.

The study For Our FDA clearance


Women involved


Cycles analyzed


Typical Use


Perfect Use

fda cleared

FDA Cleared in the US

We’ve been available as a contraceptive in the U.S. since 2018 when the US FDA Cleared us as a digital birth control method.

ce marked

Certified in Europe

Natural Cycles is the first CE-marked Class IIb medical device (CE0123) for use as a method of birth control.

illustration of australia

Listed in Australia

We’ve been available as a birth control in Australia since 2020 when we were listed with the Australian Register of Therapeutic Goods.

What's the difference between typical and perfect use?

Find out more about the numbers behind our birth control effectiveness and how it compares to other methods on the market.

Our mission

image of natural cycles peer reviewed  studies pamphlets

Contributing to women's health is built into our mission at Natural Cycles. We've published peer-reviewed studies and research, not only on the effectiveness of our app, but on women's health more widely.

The research we do

We are proud to work with experts at some of the world’s leading institutions. Our Medical Science Team is constantly carrying out research with the vision to further the field of female health.

Institutions we work with

National institute of healthHerbert Wertheim College of Medicine, Florida International universityKarolinska institutetUniversity college london

Are you a healthcare professional?

We work closely with doctors, nurses and midwives. Head over to our healthcare professionals page to find out more about offering Natural Cycles to your patients.

Discover Natural Cycles° today