Operator - Looking for something? Make a request and we'll find it.
Fantastical 2 - Fantastical, the Mac calendar app you'll enjoy using. Quickly create new events with natural language input and more.
Magic - Get whatever you want on demand with no hassle, through SMS
Google Calendar - Spend less time managing your day & more time enjoying it
Slack - A messaging app for teams who see through the Earth!
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.