Which Android app should I use for tracking menstrual cycles and planning around them?

Period Tracker and Calendar is a strong option for anyone needing a reliable, comprehensive cycle tracking tool. Its primary strength lies in highly accurate predictions for period start dates and fertile windows, which users consistently praise for reliability, often citing deviations of only one to three days. This accuracy makes it particularly useful for planning vacations, social events, or medical appointments well in advance. Beyond basic tracking, the app allows for detailed logging of symptoms, weight, mood, and flow intensity, creating a valuable health record that can be referenced during doctor visits. Customizable reminders ensure users are never caught off guard. While the interface is generally clean and themes are changeable, some users note that the symptom logging interface can feel a bit clunky during data entry. Nonetheless, with its robust free feature set and useful health tips, it serves as a practical digital companion for understanding and managing menstrual health over the long term.