A subscription to the Natural Cycles app helps make hormone-free birth control more accessible, giving you more choices to find what works for you — all while supporting women’s health …

Learn when you can or can't get pregnant due to changes in your temperature. Effective from day 1, even with irregular cycles, discover Natural Cycles today.

Natural Cycles is an app powered by a regulated and certified algorithm based on body temperature that learns the pattern of your unique cycle to work out each daily fertility status.

If you’re looking for a birth control method that fits into your lifestyle and is hormone-free, download the Natural Cycles app today and take control of your body, your cycle, and your …

Discover the hormone-free birth control app everyone is talking about. Read reviews, find out how it works and much more online today at Natural Cycles.

As a particle physicist and researcher, I decided to take things into my own hands so I developed Natural Cycles, the first FDA cleared birth control app. The app analyzes a woman’s body …

Natural Cycles is an app powered by an algorithm that determines your fertility status based on body temperature. Just measure, add your temperature to the app, and let our algorithm do …

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 …

Learn more about the effectiveness of the first birth control app and how it compares to other popular birth control methods. Discover Natural Cycles today.

Natural Cycles birth control is 93% effective with typical use and 98% effective with perfect use. Learn more about hormone-free birth control today.