Menstrual Period Tracker (was Menstruation and Ovulation Calendar, then was Menstrual Period Tracker and Ovulation Calendar) is a menstrual-period tracker with pregnancy mode.
Smart calculation: if you enter period dates that are different from predicted days, the app recalculates its predictions.
iCloud support (synchronizes data between all your devices).
Today widget (extension).
Keeps history of your menstrual cycles.
Can different symptoms (e.g. migraine or abdominal pain).
Symptom names may be changed.
Calendar colors may be changed.
Can track body temperature (in Fahrenheit and Celsius degrees).
Displays basal body temperature charts.
Text notes (e.g., about period, taken medications, mood, friends) may be attached to each day.
Automatically predicts menstruation periods.
Automatically predicts probable ovulation days.
The user interface is easy to use and looks good.
Full screen mode.
Password protection (if you forgot your password, please enter: passwordrecovery111).
New button icons.
Touch Bar support.
Touch ID support (log in using your fingerprint).
New color choices (white background option).
OS X 10.7 or Later