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Bitrix24 vs Lark: catalog facts
Bitrix24	Lark
Freemium Can be started for free; paid plans are offered.	Freemium Chat, docs, meetings and automations are offered free, with paid plans for larger teams.
Windows, Android, Web	macOS, Web
Browser, desktop and mobile access to the same workspace Free starting option	Chat, meetings, docs and projects in one app Built-in workflow automation
Hosted service that requires an account in a company Bitrix24 Desktop app supplements the browser version rather than replacing it	Hosted service, so data is stored with the provider Few details about plans and limits in the research
Downloadable app, Web application, Hosted service	Downloadable app, Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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