Clue Period Tracker & Calendar

Are your moods related to your menstrual cycle? Just track in your period diary what you’d like to know more about, and Clue takes care of the rest. The period tracker you’ve been waiting for: Now You Know.

Clue is a period tracker, calculator and calendar, all-in-one:

• Calculate when your next period is coming with the period calculator.
• Receive a period reminder.
• Receive PMS reminders.
• Find the unique patterns of your menstrual cycle.
• Know which days in your cycle that you’re more or less likely to get pregnant.
• Receive fertility reminders when you’re approaching your estimated fertile window.
• Track sex, pain, moods, cervical fluid, birth control pills and more.

Clue also includes:

• 28 period diary tracking categories, including period, cramps, emotions, skin, hair, sleep, exercise, energy, cravings and more.
• The only period tracker with the guarantee of no flowers, butterflies, euphemisms or pink - ever.
• The fastest data entry of any period tracker available.
• In-depth descriptions about the menstrual cycle, complete with medical and scientific references about the menstruation.
• An algorithm that learns from the data YOU input about your period. The more you use it, the smarter it gets.
• A customizable passcode to protect your privacy.
• Historical overview of your past menstrual cycles to easily observe trends about your period.
• An optional account login to backup your data or log in on multiple devices.