Simple and private period tracker

Simple control

Easily know where you are in your cycle and control any changes that may occur.

Advanced predictions

Based on your patterns Prime Period will predict your cycles, bleeding, pain, mood, etc.

Share with others

Sharing data allows you to give others (family members, partner, etc.) insights in your menstrual cycle.

Pioneer in data security

Your data is your data, we will never see them - even when you share with others. In addition to an encrypted connection to our server your data is also encrypted locally. We or others you haven’t shared your data with will never be able to access it.

The caveat is of course that you are in charge of not losing your data; which is easily mitigated by connecting with more than one device (e.g., smartphone and computer).