ClassUp - ClassUp is one of the scheduling apps that proves helpful for students to manage their class timings, notes and organize their tasks.

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

Cute Note - Cute Note is one of the most elegant applications which provides its users with the facility of a simple notepad and to-do list.

Google Calendar - Spend less time managing your day & more time enjoying it

List:Daily Checklist - List:Daily Checklist is one of the most-exceptional apps that makes its users punctual, consistent, and sustained them for a long time.

Itsycal - Itsycal for Mac. Itsycal is a tiny menu bar calendar. If you want, it will display your events as a companion to the Mac Calendar app. You can also create and delete (but not edit) events. Download Itsycal for macOS 10.