PEM-Cal is a user-friendly school calendar app designed for the Plainview-Elgin-Millville High School, listing school activities and sports schedules, providing regular updates and push notifications, and allowing users to personalize their calendar view. It simplifies the process of checking rehearsal times, planning for a concert, or staying up-to-date with sports schedules, making it a valuable tool for the Plainview-Elgin-Millville community.