Natural Cycles - Birth Control

4.5
22.3K reviews
1M+
Downloads
Content rating
Mature 17+
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About this app

👩🏽‍🤝‍👩🏼Trusted by 3M+ women over 10 years. 🏆 Awarded Best Birth Control app by Healthline and Bestapp.com 🏆 100% hormone-free contraception. No prescription is needed. Scientifically proven to be 93% effective with typical use and 98% effective with perfect use.HIGHLIGHTS: ● The NC° app uses your body temperature to track ovulation so you know exactly when you're fertile – and what days you can/cannot get pregnant. ● The NC° app adapts to your unique cycle, even if it’s irregular. ● No hormones, no side effects, no pills or procedures – consider birth control revolutionized. ● Scientifically proven to be effective: 93% effective with typical use, and 98% effective with perfect use. ● Sign up to NC° Annual subscription for a FREE thermometer, and start measuring today! ● Offers advanced data protection. ● Get daily fertility insights + personal ovulatory patterns to help with your natural family planning needs. ● The NC° app features customizable mood trackers, great for getting to know your body better. ● Measure your temperature by wearing an Oura Ring or Apple Watch Series 8 or newer (while you sleep), or with the NC° Thermometer (in the morning). ● Get reimbursed for your NC° subscription – US users are now covered by insurance. WHY NATURAL CYCLES? Natural Cycles is more than a period tracker. Most other fertility tracking apps assume your cycle is 28 days long, even though 87% of women have cycle lengths that don't fit into the 28 day pattern.. We understand that birth control is not a one-size-fits-all. Your cycle is unique to you! Our algorithm uses personalized temperature data to confirm your ovulation, reducing the risk of you being assigned an incorrect fertile day. Unlike period trackers, the NC° app allows you to identify your fertility status daily, so you can prevent pregnancy or plan for it with greater precision. From birth control to planning pregnancy and every cycle in between – Natural Cycles is there for you with each stage of your fertility journey. Still not sure? Download the app and test out our Demo Mode. The app supports syncing with Apple Health. *E. Berglund Scherwitzl et al. “Perfect-use and typical-use Pearl Index of a contraceptive mobile app”, Contraception, Volume 96, Issue 6, 420 - 425. PRECAUTIONS: ● 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, there is still a chance of getting pregnant. ● Natural Cycles is for women over the age of 18. ● We recommend a minimum of 2-3 cycles to get the most out of your Natural Cycles subscription. ● Our subscription fee helps to protect you and your data. Many free apps work by selling their users’ data to third parties for advertising. ● Natural Cycles is only available as a method of birth control in the US, Europe, Korea, Canada, UK, Singapore, Australia and EEA. ● To use Natural Cycles, you need to understand English or one of the supported languages.
Updated on
May 12, 2025

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

Ratings and reviews

4.5
22.2K reviews
Emily groves
May 5, 2025
I bought an Android smart watch, soecifically becuase it said I could use natural cycles. They even offer a promotion to sign up for a subscription. After going through the subscription process, I find out I can't use my watch even thought it does have temperature sensors. Why would you offer a promotion on something that isn't even compatible with your app yet? It shouldn't even be suggested to download in Samsung Health app until it's compatible.
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NaturalCycles AG
May 8, 2025
Hey Emily, thank you for your question. We would be happy to help you out with this: please reach out at help.naturalcycles.com so we can give you all the info you need. Kindly,
Liz Duley
March 17, 2025
This app has been surprisingly, amazingly accurate. I have been using this app for almost a year now. I am in my late 30's I've never had a "regularly set" period. This app has only been wrong once about when my period start day would be. Without my Oura ring to track and sync my temperature with, I doubt it would be as accurate for me. I have never been in the practice of noticing let alone tracking that information. This is incredibly informative, educational, and accurate. Highly recommend!
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Danielle Ring
March 20, 2025
Expensive and doesn't work. Advertised it's going to be free when you reach pro cycler and then once you get there you have to refer 10 people.... 10! Such a joke and a scam. I spent months tracking working my way to pro to be let down. Canceling my subscription and not looking back. don't waste your money. my cycle is 28 days almost every time and 6 months later it still gets it wrong. save your money and just use the many free apps that work. the oura ring app is better and $10 less a month
17 people found this review helpful
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NaturalCycles AG
March 21, 2025
Hi Danielle, Thank you for your review. We appreciate that you took the time to share your perspective with us and for sharing your valuable feedback as we are always looking for ways to improve - Natural Cycles

What’s new

An updated app with small tweaks, just for you!