** “Clue is knowledge about your cycle, about science, about yourself.” ** — Apple

** The top free period tracker app ** — Obstetrics & Gynecology, a publication of the American College of Obstetricians and Gynecologists (ACOG)

Clue is the #1 period tracker app that uses science and research to help you unlock the secrets of your menstrual cycle. Join millions of users who trust Clue for spot-on period predictions, helpful reminders for when to expect symptoms like PMS, and accurate ovulation and fertility tracking. The Clue experience is reliable, scientific, and straightforward: no flowers, pink, or butterflies—just the facts about your cycle.

Do you ever wonder if your mood swings and cravings are hormonal? Take the guesswork out of your biology and let Clue show you what your menstrual cycle is telling you. Track over 30 health categories and start to see the patterns! Everything from your menstruation to birth control, mood, and sex habits can all be tracked and customized based on your preferences.

Can’t remember the date of your last period? Clue keeps your cycle history organized and accessible — perfect for visits to your healthcare provider or gynecologist.

Use Clue to:
* Track your period, flow heaviness, and the menstrual products you use
* Receive accurate predictions and calendar reminders before your next period, PMS, and ovulation
* Monitor and track your mood, sex, energy levels, cervical fluid, and more
* Know your ovulation and fertile days, and log your BBT temperature
* Log your birth control and set pill reminders

PERIOD TRACKER & PERIOD PREDICTIONS
* Accurate period predictions, even for those with irregular cycles. Know when your period is about to start!
* Clue learns from the data YOU put in. The more you use it, the smarter it gets

HEALTH ALERTS & CYCLE CALENDAR
* Set personalized reminders for your next period, PMS, ovulation and fertile window
* Get pill reminders and log birth control
* View period, PMS and fertility predictions for your next three cycles

OVULATION & FERTILITY TRACKING
* Plan for pregnancy with the ovulation calculator and fertility predictions
* Log your Basal Body Temperature (BBT) —perfect if you're trying to conceive

UNDERSTAND THE SCIENCE BEHIND YOUR CYCLE
* Personalized analysis of your current and past cycles: easily view your averages!
* Read in-depth information about the menstrual cycle, complete with medical and scientific references

Note: Clue Period Tracker & Ovulation should *not* be used as a contraceptive.

We use gender-neutral language to make Clue accessible for anyone with a cycle. Join us in our mission to advance menstrual health for everyone.

Get answers to your questions about periods, sex, and menstrual health at helloclue.com

We love hearing from Clue users. Send your feedback, questions and suggestions to support@helloclue.com

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