Zorium

Zorium is a chat app that positions itself as a go-to Discord alternative and aims to "unify your gaming and academic life". The project is proprietary right now, but the developer considers opening its code in the near future.

Landing page
Homepage
Profile view

Zorium has a unique server type called "Academy", which allows users to discover and enroll in courses they want.

Regular server
Academic server

In total, there are 5 channel types on Zorium:

Text
Voice/Video
Tasks
Calendar
DMs (Preview only for now)

Text channel
Voice / Video channel
Tasks channel
Calendar channel