Natural Cycles Fertility App

6+ million women

Get a non-hormonal and certified contraceptive app today, and discover the difference.

A new category of birth control | NC° Birth Control

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — The Natural Cycles algorithm analyzes hormone-driven temperature changes to identify your fertile and non-fertile days. Join the millions who are taking control of their fertility with Natural Cycles°. Natural Cycles is for 18+ and does not protect against STIs. Always read and follow the directions for use.

A new category of birth control | NC° Birth Control

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — The Natural Cycles algorithm analyzes hormone-driven temperature changes to identify your fertile and non-fertile days. Join the millions who are taking control of their fertility with Natural Cycles°. Natural Cycles is for 18+ and does not protect against STIs. Always read and follow the directions for use.

Take control with NC° Perimenopause

Your symptoms make sense here. Take control with NC° Perimenopause today. NC° Perimenopause results are there to support you, not diagnose or replace a conversation with your doctor.

Built around you

the most romantic thing he’s ever done is checking Partner View🥹✨ #ad | something I didn’t expect when I started tracking my cycle… was how much of the birth control conversation usually falls on one person, and how little visibility partners typically have into it. Using the @naturalcycles app as my hormone-free, non-invasive birth control has helped me understand my body so much more, but what’s made the biggest difference recently is its Partner View feature. With Partner View, Brandon can see my daily fertility status too, which means he’s always clued in on where I am at in my cycle and how I’m feeling. It takes the guesswork out and makes everything feel way more supportive and in sync. I can share as much or as little as I want with him through the app. Natural Cycles uses my temperature data (tracked overnight with the NC° Band and then synced in the morning) to give me either a Green Day (not fertile) or a Red Day (fertile), based on my unique cycle. If you’ve been curious about a more shared, intentional approach to birth control, this has honestly been such a game changer for us. use code LAURENJ at naturalcycles.com for 15% off an annual subscription + a FREE NC° Band ✨ 🌿 Natural Cycles is for ages 18+ and does not protect against STIs. Always read and follow the Instructions for Use. #naturalcycles

A new category of birth control | NC° Birth Control

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — The Natural Cycles algorithm analyzes hormone-driven temperature changes to identify your fertile and non-fertile days. Join the millions who are taking control of their fertility with Natural Cycles°. Natural Cycles is for 18+ and does not protect against STIs. Always read and follow the directions for use.

A new category of birth control | NC° Birth Control

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — The Natural Cycles algorithm analyzes hormone-driven temperature changes to identify your fertile and non-fertile days. Join the millions who are taking control of their fertility with NC° Birth Control.

#ad @naturalcycles

FREE wearable ($129 value) with the NC° Annual Plan

Gain clarity and take control of your fertility with Natural Cycles, the #1 birth control app — now with more ways to measure overnight. New users get a FREE ($129.99 value) NC° Band with the NC° Annual Plan! Go hormone-free today!

Protection backed by data

Knowledge is power. Take control of your cycle and fertility with Natural Cycles. NC° is for 18+ and does not protect against STIs. Always read and follow instructions for use.

#1 birth control app

A new category of birth control | NC° Birth Control

Gain clarity and take control of your fertility with Natural Cycles, the #1 birth control app. Natural Cycles is for 18+ and does not protect against STIs. Always read and follow the directions for use.

A new category of birth control | NC° Birth Control

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — The Natural Cycles algorithm analyzes hormone-driven temperature changes to identify your fertile and non-fertile days. Join the millions who are taking control of their fertility with NC° Birth Control. Natural Cycles is for 18+ and does not protect against STIs. Always read and follow the directions for use.

6+ million women

Make this summer about you. Enjoy contraception that works with your body.

Apple Watch, meet Natural Cycles. The FDA-cleared birth control app now uses your Apple Watch temperature to help you prevent or plan pregnancy.

Natural Cycles | Take control of your fertility

Hormone-free birth control + advanced cycle insights, all in one app. Meet the world's first FDA-cleared birth control app. A whole new category of birth control — The Natural Cycles° algorithm analyzes hormone-driven temperature changes to identify your fertile and non-fertile days. Seamlessly measure overnight with Oura Ring or a compatible wearable and wake up to personalized fertility insights in the Natural Cycles° app. Join the millions who are taking control of their fertility with NC° Birth Control.

A new category of birth control | NC° Birth Control

Gain clarity and take control of your fertility with Natural Cycles, the #1 birth control app. Natural Cycles is for 18+ and does not protect against STIs. Always read and follow the directions for use.