Olvid
Freemium
Team Chat & Messaging
Metadata-free encrypted messenger trusted by France's government
replaces:Slack·Discord·Mattermost
France
DPA EU data Open
Stackfield
Freemium
Team Chat & Messaging
End-to-end encrypted team collaboration
replaces:Slack·Discord·Mattermost
Germany
DPA EU data Self-host
Wire
Freemium
Team Chat & Messaging
End-to-end encrypted collaboration — chat, calls, files.
replaces:Slack·Microsoft 365·Zoom
Germany
DPA EU data Open Self-host