Understand your body. Plan around your cycle. Know what’s coming next.
Clue is the #1 women-led period and cycle tracker – science-backed, privacy-first, and built to help you live in sync with your cycle.
Trusted by millions of people worldwide, Clue gives you the knowledge and personalized insight to make confident health decisions, from first period to perimenopause.
Headquartered in Berlin, your data is protected by strict European privacy law (GDPR).
Track your period and cycle
Know when your period is coming, and get personalized predictions based on your unique cycle length, flow, and patterns.
See how your cycle affects how you feel
Track 200+ symptoms and experiences – cramps, PMS, pain, energy, cravings, mood, skin, sleep, sex drive, discharge, and more. Your patterns, in clear charts.
Get ahead of symptoms
See what might be coming, from PMS and cramps to energy dips, so you can plan ahead. Set custom reminders so nothing catches you off guard.
Understand your fertility
Get personalized ovulation and fertile window predictions, based on a clinically-validated algorithm designed to help you conceive.
Stay on track with birth control
Log your method – pill, IUDs, ring, patch, and more. Track your cycle symptoms even without regular bleeding.
Get real answers, backed by science
Explore 400+ articles on your cycle, fertility, sex, pregnancy, perimenopause, and reproductive health.
Use Clue through every life stage
Switch between modes as your needs change. Period tracking, trying to conceive, pregnancy, and perimenopause.
Connect a wearable
Layer your cycle data with temperature, sleep, and heart rate for deeper health insights. Works with Apple Watch, Oura, WHOOP, Withings, Fitbit, and more.
Get more from every cycle with Clue Plus — deeper analysis, advanced predictions, and personalized insights that get smarter the more you track.
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.
Note: Clue should not be used as a contraceptive. Clue is made to help people understand their menstrual and reproductive health by tracking their data, as well as predicting fertile days to aid conception. The app does not substitute professional medical advice, diagnosis, or treatment. Your healthcare provider can give you advice on your specific needs and situation.
Helloclue.com
support.helloclue.com
Terms of Service: www.helloclue.com/terms
Privacy Policy: www.helloclue.com/privacy
Have been using the app for years, always really enjoyed the interface and features. Recently some updates have made some changes that made the usage less convenient/pleasant, but I was very pleased to discover a very responsive customer support team who were very willing to make my user experience better with the tools currently at their disposal. Appreciate the generous and considerate response and I’m glad I can continue to use this app.
Developer Response
Hey, thanks for taking the time to leave us such a positive review. We really appreciate it. All the best, Ilaria from Clue.
love this app so much!
Melala84
I’ve been using it for years and I love that you track so many things like exercise, motivation, because they actually do change during the month depending on my moods. So it’s amazing tracking and seeing that right before my bleed I’m withdrawn socially and unmotivated, and my hair and skin changes.. I just love the outlook this app gives on our periods: that your whole state of being shifts so incredibly!It’s also a great way to honor your bleed so I truly love clue. Thank you!
A wonderful app !
Berry_.
Cannot recommend Clue enough :) I have been using this app close to a decade now and I never thought of using a different one. I appreciate the effort put into Clue from its team, it shows through and holds immense value to me. Thank you!
Developer Response
Thanks for the positive review! Your feedback can help other people try Clue with confidence, so we appreciate you taking the time. Happy tracking, the Support Team at Clue
The pattern analysis
aliceG25
Once the patterns were available for everyone, now it’s only for subscription. I understand that there are reasons why the subscription exists, but i think they could’ve left the patterns option free for everyone. In my opinion this is important to some if not most women and not everyone can afford a subscription. Other than that i have absolutely no complaints, it’s the easiest app to track everything you need!
We update the Clue app every week with bug fixes, performance improvements, and new features to make your cycle tracking more accurate and comprehensive.
If you have questions or feedback for the team, browse our FAQs or contact us anytime through the contact form in the Support Section of the app (More Menu, Support).
Enjoying the Clue app? Feel free to leave us an App Store rating and review.
Version 280.0
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, for example, on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
