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. FDA cleared.

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 – 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.
○ We recommend a minimum of 2-3 cycles to get the most out of your Natural Cycles subscription.
○ Natural Cycles requires a subscription to access its core features. Subscription options include monthly and annual plans.
○ Our subscription fee helps to protect you and your data. Many free apps work by selling their users’ data to third parties for advertising. Your privacy is a priority. Natural Cycles is designed to keep your data safe.

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 – Na