Decode the menopausal shift with NC°
Perimenopause stage assessment
Actionable daily insights
Advanced cycle & symptom analysis
What’s the most challenging part of your perimenopause journey right now?
Powered by temperature data
Measure key biometrics
Natural Cycles integrates with multiple measuring devices, including the NC° Band, Apple Watch, and Oura Ring. Measure while you sleep and sync data directly in the app.
Get daily insights
Our science-backed app transforms data into actionable insights — helping you track your fertility and spot irregularities as you move through perimenopause.
Decode hormonal shifts over time
Measuring consistently can help you see the wider picture of perimenopause. Identify patterns and learn more about the link between your hormones and symptoms.
Inside NC° Perimenopause
Driven by the first-of-its-kind menopause algorithm and packed with smart features to support you.
Feel safe knowing your data is protected
NC° Secure is our comprehensive privacy protection program, included with every subscription.
Common questions
Own your body’s next chapter
NC° Perimenopause is here to support you with wellness insights and information. It’s not a diagnosis — we always recommend consulting with your own doctor for medical advice.
Natural Cycles is available as a method of birth control in the US and territories; Canada; United Kingdom; Ireland, France; Germany; Netherlands; Luxembourg; Belgium; Spain; Portugal; Austria; Switzerland; Italy; Latvia; Lithuania; Malta; Estonia; Sweden; Denmark; Norway; Finland; Iceland; Bulgaria; Czech Republic; Hungary; Poland; Romania; Slovakia; Greece; Cyprus; Croatia; Slovenia; Montenegro; Singapore; Australia; Brazil. Outside these countries listed, Natural Cycles is intended to be used for fertility monitoring.