My 18-year-old daughter knows exactly when it will be that time of the month. Since June, she’s been plugging the dates of her menstrual cycle into a popular period tracking app, and has it programmed to send her an alert every month, two days before her next period is due.
There are over 200 different period tracker apps to choose from, and they are immensely popular.
- How Period Trackers Have Changed Girl Culture,
nytimes, NOVEMBER 12, 2015
- Our Bodies, Our Apps: For the Love of Period-Trackers,
nytimes, JANUARY 23, 2014.