Top 10 Menstrual Cycle trackers

Period Tracker
Period Tracker is the simple way to keep track for women. Includes features to track symptoms, moods, notes, weight, and even temperature. Complete with charts, calendar, email backup and restore, passcode and many more features. Period Tracker logs your dates and calculates the average of your past 3 months' menstrual cycles to predict the start date of your next period.