Threaded Chat app alternatives

Alternatives to: Slack, Discord, Teams, Google Chat

[more detail coming soon]

App name	Open Source	Structure; Business model	Features	Country of origin	Link
Zulip	Yes		Topics within Channels
Element			Matrix-based
Mattermost
RocketChat

RTA's choice

We use Zulip.

Next up:

➡️ Laptop OS alternatives