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Become a co-owner from just €10 and shape the future of menstrual and reproductive health with us.
Live in sync with your cycle
From period to pregnancy tracking, Clue's got you covered.
App Store
Play Store4.8
2M+ ratings
Data secure
Ethics driven
Female led
One year post-Roe: This is what we want Clue users to know
No matter where you are in the world, we will never allow your private health data to be used against you.
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Track periods, ovulation & PMS
Track periods, ovulation & PMS
Get predictions based on the most up-to-date science
Keep track of your cycle lengths to observe patterns
Your predictions get more accurate every time you track
Discover patterns in your cycle
Use 30+ different tracking options to find out how your cycle affects things like mood, skin, energy levels and much more.
Make choices that are right for you
Learn about your body from the data in your app and our science-based articles to make informed health choices.
4.8
2M+ ratings
Why people love Clue
Accurate, informative, easy to use! The clean and fun design makes tracking your cycle, dare I say, fun?
Nicole Layton
Clue is such an invaluable app! As someone with PCOS and other health conditions that contribute to painful and irregular cycles, Clue has helped me to see patterns in my cycle.
Sophie Purdie
This app is almost scary with how accurate it is in prediction of ovulation and menstruation times. I'd give 10 stars if I could.
Esther Mungai
11 million people trust Clue with their data
- Keeping your private health data safe and secure has always been at the core of everything we do.
- You can import, export, or delete your data any time.
Get health advice from our medical experts
Benefit from tips and articles about periods, sex and reproductive health, complete with medical and scientific references.
2M+ ratings
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Start tracking your period, ovulation & PMS.