Clue Period, Ovulation Tracker 12+

Fertility & Cycle Calendar

BioWink GmbH

    • Free
    • Offers In-App Purchases

iPhone Screenshots


Get to know your menstrual cycle with the award-winning Clue app. Clue makes it easy to stay in sync with your body and track your periods and cycle-related experiences accurately and effortlessly.

Whether you’re trying to get pregnant, managing and tracking cycle-related experiences, or simply want to learn more about what makes your body tick, Clue’s got you covered. Understand your unique patterns, know when you ovulate, and increase your awareness of your overall health and wellness with just a few taps in the Clue app every day.

Founded and led by women, Clue is trusted by millions of people worldwide. Clue does not sell your personal health data and will never disclose it. Based in the EU, Clue is protected by some of the strictest data privacy laws in the world (GDPR), which means you can track safely and securely.

What can Clue do for you?


• Know when to expect your period and plan ahead with advanced, personalized predictions
• Discover your body’s unique patterns by tracking 100+ experiences connected to your cycle like feelings, cravings, pain, sex drive, and much more
• Log your birth control method, including pills, IUD, ring, patch, and more
• Get answers to your health questions with science-based content that breaks down complicated topics like fertility, STIs, and the science of sex into easy-to-understand articles


Clue’s clinically-tested technology takes the mystery out of getting pregnant and can easily tell you your most fertile days.

• Get pregnant faster without temperature checks or pee tests
• Track your period start dates and Clue’s algorithm does the rest
• Get personalized fertility predictions for the best time to try or do home insemination
• Access tips and advice from fertility experts to help you understand the science behind getting pregnant


• Follow the growth of your baby with weekly updates on size, weight, and development
• Receive weekly tips and support from OB-GYNs and Nurse Midwives

Get the most out of Clue with a Clue Plus subscription!

Try Clue Plus and experience the all-in-one reproductive health app for every phase of your cycle, with access to science-based articles, six months of advanced cycle predictions, plus Clue Pregnancy and Clue Conceive modes.

A few legal details:

After you choose the Clue subscription that’s right for you & confirm your purchase, the credit card associated with your iTunes Account will be charged. Once purchased, your subscription will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. If you currently have a free trial, any unused time will be forfeited when you purchase a subscription.

If you want to renew your subscription, your account will be charged the same amount you paid for your initial subscription, 24 hours before the end of the current period. You can manage or change your subscription at any time, including turning off auto-renewal, by going to the ‘Account Settings’ on your device after the purchase.

If you have any questions, our Support Team is here to help. Feel free to reach out through the app or at

Note: Clue should *not* be used as a contraceptive.

Terms of Service:
Privacy Policy:

What’s New

Version 117.0

Thanks for using Clue. This update includes bug fixes and behind-the-scenes work to improve your cycle tracking.

If you haven't explored Clue's Content Tab, now is a great time to brush up on the science behind your cycle, fertility, and reproductive health. We've added graphs, diagrams, and charts to some of our most interesting articles for a better in-app experience. Plus, our content is written and fact-checked by scientists and health experts, giving you a supportive source of information you can trust.

Ratings and Reviews

4.6 out of 5
23.1K Ratings

23.1K Ratings

millaaaby ,

Perfekt app

Brugervenlig og fantastisk til at danne overblik over ens cyklus. Skud ud til holdet bag ❤️❤️❤️❤️

Muspige ,

Virker ikke

Jeg kan ikke åbne app’en mere efter sidste opdatering, har prøvet at slette og installeret det igen uden held

Developer Response ,

Hi! Please write at and we'll try to help you!

zuanetris ,

Dårlig opdatering

Øv ☹️ alle mine gamle tags er forsvundet med den nye opdatering 👎🏼 kan heller ikke længere tagge medicin 😳 overvejer at finde en anden app nu. Har ellers været meget glad for denne app gennem mere end 8 år!

App Privacy

The developer, BioWink GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Location
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data
  • Sensitive Info

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary based on, for example, the features you use or your age. Learn More

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