Clue is a beautiful and easy-to-use period & ovulation tracker. It predicts when your next period, fertile window and PMS will be, so you can make the right decisions each day. Easy to understand educational content helps you to learn essentials about your fertility cycle.

Features include: prediction of your next period, fertile window and PMS, a beautiful visualization of your current period and a calendar with your history of periods.

Clue allows fast and easy to use data entry of essential information to track each month, including period flow, pains, sexual activity, mood, cervical fluid and notes

Your average cycle length is updated each month, so you don’t need to fuss with settings. Clue becomes more accurate the longer you use it.

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