Our website uses cookies, which are small text files that are intended to make the site better for you to use, and that help us understand how people interact with our content so that we can make it better.

    You can find out more details about Clue's approach to privacy by reading our Privacy Policy

    These cookies are necessary for the website to function and cannot be switched off.

    They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in, or filling in forms. These cookies do not store any personally identifiable information.

    These cookies may be set through our site by Google Adsense to show you ads that are relevant to your interests, based on your browsing history. If you do not accept these cookies, you will still see ads, but they will be less relevant to you.

    The Clue website uses third-party analysis and tracking services to track the performance of our services, understand how you use our services, and offer you an improved experience.

    You may withdraw your consent to this processing of your data at any time. One way to so is by generally disabling cookies on your device (which will also affect your other online activities). Or you can disable cookies specifically for this website by switching the toggle to 'Off'.

    You can read more about how Clue handles and thinks about data in the following blog posts written by our founder and CEO, Ida Tin.

    The journey of a single data pointThe journey of a single data point, Part II: The underworld of digital advertisingThe journey of a single data point, Part III: About the selling of health data

Your Privacy

Our website uses cookies, which are small text files that are intended to make the site better for you to use, and that help us understand how people interact with our content so that we can make it better.

You can find out more details about Clue's approach to privacy by reading our Privacy Policy

Your Privacy

We use cookies on our website to analyze how people use it and improve the experience.

You can read more about how we use cookies in our Privacy Policy, or manage your preferences here.

Track your period and ovulation with Clue to understand how your body works.

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Get (period, PMS and fertile window) predictions you can trust

All of our predictions are based on the most up-to-date science. We collaborate with scientists and universities to ensure continuous improvements.

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Never get lost in your tracked data. With frequent analysis reports and a clear calendar overview you’ll draw conclusions quickly.

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Learn about personal patterns with 30+ tracking options like cramps, skin, hair, sleep and more to gain a better understanding of how your body works.

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Hi, I am Steph! I’ll send you both educational and entertaining stories about women’s health and share tips and tricks to get the most out of your Clue app!

Happy Clue users

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4.8

1M ratings

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Accurate, informative, easy to use! The clean and fun design makes tracking your cycle, dare I say, fun?

Nicole Layton

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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

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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

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Track your period and understand your body better. Get the app:

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