The most common ovulation calendar app, KONOTOKI is an easy to use and intuitive.

You can enter your period and basal body temperature, and the app will calculate your ovulation period. You can also enter the estimated ovulation day and fertile period for pregnancy, and the app will inform you of your most fertile time and your expected fertile days for pregnancy.

This app is the best tool for you to prepare yourself for your most fertile days for pregnancy.

It is suitable for the following:

A woman, a man, or a couple who wishes to become a parent.

A man or a woman who wants to get pregnant.

A couple who wishes to conceive a baby.