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
Using Clue for about a year already. It helped a lot. Not only it solved the problem of remembering the period date, but also helped with mood and activity tracking. Thanx to the statistics i know now much more of how and when hormones usually affect my life. Also being able to write my own tags is useful.I wish once there would be some ability to see all the data graph at once to see the whole picture and analyze it myself)
Adding new language
user0lu
Hello team! I’ve been using Clue for a few years and it would be good if you added the Ukrainian language. I also have a comment about the speed of the app - when you scroll down to view past cycles, it takes a while for them to load. I'm also currently using another cycle tracker and it doesn't have this problem. But I like Cluе a lot more, so I really want you to be able to fix these two points (language and speed) to make Cluе more comfortable 🫶
Developer Response
Hey, thanks for your review. We always enjoy getting feedback from people who use Clue. We’re constantly looking for ways to improve our app and really appreciate your suggestions. We’ll pass it on to the relevant team. All the best, Ilaria from Clue.
Best
Torbo4ka
I‘ve been using Clue for almost 10 years! When younger, I used it simply as a calendar. With age I started using far more tracking options. I also really love the educational section: it helps so much in age of overwhelming unscientific social media!
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
Network connection
moonaelle
Okay, hear me out. I was using this app for years and was more than satisfied UNTILL the update. Right now to check your previous marks and add a new mark you should connect to internet. It makes no danm sense. I’m not able to always be connected to internet while using it. Now, visiting my doctor, I have to ask for Wi-Fi pass to check my previous menstruation marks?😂Why would you need me to be online to mark my period? You need this info or what? It’s the stupidest thing ever 🤦🏻♀️ Women need privacy 😠
Developer Response
Hey, thanks for your review and for your feedback about this. We hope that future updates will be more aligned with your wishes. All the best, Ilaria from Clue.
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 285.0
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
