Time to go Riot! https://riot.im
Solid E2E crypto (Megolm)[1], open source, federated, clients for most platforms, Android client on F-Droid.
Solid E2E crypto (Megolm)[1], open source, federated, clients for most platforms, Android client on F-Droid.
I use Signal myself and it's nicer than Riot, IMHO, but I can't get anyone else on to it other than my other half.
Regarding its popularity I would have expected a lower quality product. In fact the UX and the UI are superior to slack.
Furthermore while not needed, it was _very_ easy to host my own matrix server and to use bridges to access my preferred IRC channels. So my server keep track of the messages written when I'm not logged in.
Really its just great and I recommend everyone to give it a try.
No thanks.