Pai is a simple and reliable application that helps you to track and understand the menstrual cycle and fertility. It provides daily insights on how likely you are to become pregnant and provides a clear calendar of your fertile days.

Pai calculates the fertile days based on the date of the last period and shows the probability of pregnancy. It also helps you understand the relationship between the menstrual cycle and fertility.

Pai calculates the best time to conceive a baby. It shows you the best days to conceive based on your menstrual cycle. It also shows you the probability of conception and the best time to conceive.