Kakao Work
Kakao's business messenger with a familiar KakaoTalk-style UI. Combines org-chart based chat, task management, and video meetings in a single Korean-language-first workspace.
Onboarding cost is near zero for Korean teams already on KakaoTalk. Global-facing startups often end up using it alongside Slack.
Separate from KakaoTalk?
Yes, it's a dedicated business app completely separate from personal KakaoTalk.
Japanese language support?
UI is primarily Korean with limited Japanese support.
How does it compare to Slack?
Kakao Work optimizes for Korean workflows (approvals, org charts); Slack has broader global integrations.
Free plan limits?
Up to 300 users with basic chat, video, and task features free. Advanced analytics and integrations require paid tiers.