The Year of Livestreaming - A 2016 live video retrospective from Livestream
Fantastical 2 - Fantastical, the Mac calendar app you'll enjoy using. Quickly create new events with natural language input and more.
Lightstream - Powerful, cloud-based live streaming studio.
BusyCal - powerful calendar app for macOS
Brime - Brime is a new live streaming platform that supports 4K 120 FPS streaming, low latency, live chat translation, and has built-in multi streaming.
Google Calendar - Spend less time managing your day & more time enjoying it