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Cisco Jabber vs Slack: catalog facts
Cisco Jabber	Slack
Free The client is a free download from Cisco.	Freemium Free plan available, with paid plans for more features.
Windows, macOS, Android, iOS	Windows, macOS, Linux, Android, iOS, Web
Available on desktop and mobile Separate VDI edition for virtual desktops	Channels keep team conversations organized Large range of app integrations
Mainly useful inside organizations that run Cisco services Official page gives little detail about features	Closed source hosted service Many features and AI tools sit behind paid plans
Downloadable app	Downloadable app, Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.