Periodical is described as 'This application calculates the fertile days according to Knaus-Ogino and can track menstrual symptoms' and is a Period Tracker in the office & productivity category. There are more than 25 alternatives to Periodical for a variety of platforms, including Android, iPhone, iPad, Android Tablet and Apple Watch apps. The best Periodical alternative is drip., which is both free and Open Source. Other great apps like Periodical are Mensinator, Menstrudel, Peri and Mooneva.
Luna is an easy-to-use menstrual cycle and pregnancy tracker for Linux. It helps you log your periods, predict ovulation, view helpful cycle statistics, and - if applicable - track pregnancy progress including; gestational age and estimated due date.
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