Pocket Informant - Pocket Informant is the Best Calendar app for mac and iOS. Pocket Informant for iOS, Mac desktop, and Android.

iStudiez - iStudiez combines tracking schedule, homework and grades with a delightful user experience.

Awesome Cal - Awesome Cal is a Calendar application for your iPhone that you can take anywhere and keep close by to monitor all the upcoming birthdays, festivities, meetings, and more from a single place.

MyHomework - myHomework is an app where students can manage their school life.

Fantastical 2 - Fantastical, the Mac calendar app you'll enjoy using. Quickly create new events with natural language input and more.

FamCal - FamCal is an organized and managed calendar to track the family records like events, notes, and dates of births.