Clue is the #1 women-led period and cycle tracker for understanding your body and how hormones shape your everyday experiences. Loved and trusted by over 100 million women and people with cycles worldwide, Clue supports confident, informed decisions about your health.
Whether you’re tracking your period, trying to conceive, navigating perimenopause or simply getting to know your body better, Clue’s got you covered.
Backed by science and headquartered in Berlin, your data with Clue is protected by some of the strictest data privacy laws in the world (GDPR).
New: Connect your wearable with Clue. Combine Clue Plus insights with your temperature trends, sleep, and heart rate biometrics to better understand your fertility and health.
PERIOD & MENSTRUAL CYCLE TRACKING
• 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, PMS, cravings, pain, sex drive, and much more
• Review an analysis of your past periods and cycles, including average cycle length, period length, period flow, and cycle variation
• Log your birth control method, including pills, IUD, ring, patch, and more
• Set up calendar reminders for your period
• Sync your period data with Apple Health
• 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
FERTILITY & OVULATION CALCULATOR
Clue’s clinically-tested technology takes the mystery out of getting pregnant and can easily tell you your most fertile days.
• Get personalized ovulation and 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
PREGNANCY TRACKING
• Follow the growth of your baby with weekly updates on size, weight, and development
• Track your body's changes during pregnancy, like increased smell and taste, pregnancy glow, sleep quality, the supplements you take, and more
• Receive weekly tips and support from OB-GYNs and Nurse Midwives
PERIMENOPAUSE
• Track hot flashes, sleep changes, your mood, and more
• Stay on top of your changing cycle
• Learn how your body is changing with expert-led articles
Get the most out of Clue, plus access to all four tracking modes (like Clue Conceive and Clue Pregnancy), with a Clue Plus subscription!
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.
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Privacy Policy: www.helloclue.com/privacy
It helps detect when the period will be approx. and with unprotected days when missed a pill
Great App
Juleigh15
Super useful and informative!
THEY ONLY WANT YOUR MONEY AND DATA
Jessica likes to run, you know
This app keeps getting worse and worse as the years go on. They keep taking away features in hopes that you will purchase their “plus” addition to get those features back. They even took away the fertile window period on the calendar- like this free edition literally has no features left!! What a joke.
Developer Response
Hello, and thank you for the feedback. We want Clue to be a sustainable app thanks to our users. We don't want to show ads, nor sell your data: we want to create a real value in your lives. And the best way to do that was to include some features under Clue Plus. Regarding the fertile window, if you are using Clue to get pregnant or for educational purposes you will still be able to see the predicted ovulation! Meanwhile, remember that fertile window and ovulation should not be used for contraception. We'll be have to clarify if you have any questions - feel free to reach out to us!The fertile window as it is right now puts fertility at the center of the Clue experience. Whether or not fertility is part of your life right now, we want to acknowledge and educate a wider audience, which is why we are removing the fertile window. This is to refocus the information more on you and less on your fertility.
Was a 5, now a 1
KCAT1988
I absolutely hate they’ve removed the estimated ovulation/fertile window. That was a critical point in the success of my family planning. Now that the feature is gone, I’m gonna switch to a different app. Thanks for all the years, Clue.
Developer Response
Hi! You can still turn the ovulation day on by going to the More menu > Settings > and toggling the potential ovulation day on.Your body is not a clock, and you will not always ovulate at the same time each cycle. The ovulation day shown in Clue is only a prediction and varies depending on your body and environment. The ovulation day is meant for educational purposes only and CANNOT be used as a contraceptive.We still love and support our users who are trying to get pregnant! If you DO want to use Clue to get pregnant, we have an article on our website giving tips on how to get pregnant :) and if you have any questions, please feel free to reach out to us!
Thanks for using Clue. This update includes bug fixes and performance enhancements.
If you're enjoying the app, feel free to leave us a rating and review.
Version 261.0
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, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More