Key features:- intuitive calendar in which you can visualize non-fertile, fertile, ovulation, expected period and period days- Period tracker, calculator and calendar- backup and restore functionality for calendar, cycles and settings. Never be afraid to lose your calendar data- intuitive user interface with vital summarized information at a glance- daily things to keep in mind- daily entry which allows to save the following information: flow, intercourse, symptoms, moods, temperature, weight, medicine, PMS, other diary notes- easy navigation between days- notification reminders about upcoming period, fertility windows or ovulation.- PIN code for sensitive data protection- allow to keep track of different signs of ovulation- choose from different units of measurement- possibility to reset all saved data