There is a 3rd alternative...
Atolia, the one and only workspace your team needs
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Why choose ChatWork or Wimi?
Both ChatWork and Wimi offer roles management, chat, file sharing, group/video calls, screen sharing, and two-factor authentication. Wimi provides graphic personalization, custom domain name, and online document editing, which ChatWork does not offer. On the other hand, ChatWork has contact management, workspace and user activity tracking, mentions, and polls, which Wimi lacks. Overall, both have their strengths and weaknesses, and the choice between them depends on the specific needs and preferences of the user.