Natural Cycles - Birth Control

18.7K reviews
Content rating
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About this app

NC° Birth Control · NC° Plan Pregnancy

○ NEW: Natural Cycles° is working with smart ring innovators, ŌURA, to create a seamless experience for those looking to plan or prevent pregnancy naturally
○ The #1 Rated Birth Control and Ovulation Temperature Tracker App in the US
○ Subscription-based to protect your data. We will never sell your personal data.
○ The only birth control app cleared by the FDA as a regulated medical device
○ Adaptive technology that uses your unique cycle and basal temperature to track ovulation so you know exactly when you're fertile, and what days you can and cannot get pregnant
○ Daily insights into your fertility and personal ovulatory pattern to help with your birth control or natural family planning needs
○ Scientifically proven to be effective: 93% effective with typical use, and 98% effective with perfect use
○ Switch modes and use to plan a pregnancy. Great for couples to follow ovulation and trying to conceive

Natural Cycles is not just a period or basal body temperature tracker. Most other fertility tracking apps assume your cycle is 28 days long. This means the fertile window they give you is not tailored to you. Our algorithm significantly reduces the risk of you being assigned an incorrect fertile day as it uses your personal data. This reduces the risk of unwanted pregnancy, or can help you plan pregnancy and conceive with greater precision.

Pricing Plans

○ Yearly Plan (Recommended): $99.99/year.
○ Monthly Plan: $12.99/month.
○ A subscription is needed to use the app; Natural Cycles is intended for long-term use.
○ We charge a subscription in order to protect you and your data. Free apps need to make money, so many of them do so by sharing or selling their users’ data to third parties for advertising. We will never sell your data because our users' privacy is paramount to us.


○ Natural Cycles does not protect against sexually transmitted infections (STIs). Use a condom to protect against STIs.
○ No method of birth control is 100% effective, even when using the birth control app perfectly you can still have an unintended pregnancy.
○ Natural Cycles is for women over the age of 18.
○ Natural Cycles is only available as a method of birth control in the US and in Europe.
○ To use Natural Cycles, you need to understand English or one of the supported languages.

Looking for a reliable fertility app to get pregnant? Natural Cycles is a perfect period and ovulation tracker app that will meet your needs.

Before you start using Natural Cycles for birth control, fertility and/or ovulation tracker, read the User Manual, Terms of Use and Privacy Policy.
User Manual
Terms of Use
Privacy Policy

*E. Berglund Scherwitzl et al. “Perfect-use and typical-use Pearl Index of a contraceptive mobile app”, Contraception, Volume 96, Issue 6, 420 - 425.
Updated on
Nov 29, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, Personal info and 6 others
Data is encrypted in transit
You can request that data be deleted
18.7K reviews
Geovanny Martinez
August 4, 2022
I've only been using the app for about a month but so far I love the look of the app, all the features, navigation, and the educational material. I'm in my 30's & didn't know half of the information they teach you about! Con: the only one so far, is the thermometer. When I wake up in a darkish room, the thermometer is hard to read. It doesn't light up or automatically update the app with your temp. If they could update this, it would change I would have zero negative feedback!
17 people found this review helpful
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Kaitlin Senko
July 12, 2022
I've been using the app a few days now. lots of great info, really straight forward, easy to get a handle on the method. not about the app: the thermometer can be really hard to read in the early morning, and the temperatures (even a saved one) just disappear from the screen too quickly, especially for something you really can't retake
8 people found this review helpful
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Chloe Sexton
July 31, 2022
Absolutely love this app! I've been using it for 3 months (started immediately off of years of hormonal bc) and detected my first ovulation! The educational materials are fantastic, it is easy to see which factors are used in the algorithim vs which are for you to connect with your body/cycle (takes the pressure out of it) and the app is very well designed layout/visual appeal wise!
8 people found this review helpful
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What's new

Our latest update freshens up the app for you!