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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