There is a 3rd alternative...
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Why choose Lark or ChatWork?
In terms of pricing, ChatWork has a lower entry-level price of $5/user/month compared to Lark's $12/user/month, but Lark offers a free version while ChatWork's free version is limited to up to 100 users. Both tools offer chat, file sharing, and audio and video calls, but Lark has the added advantage of breakout rooms and participant permissions, while ChatWork offers group video calls for up to 500 participants. Lark also offers online document editing, document management, and AI-powered meeting transcription, while ChatWork has a task management feature. Overall, both tools have their unique strengths and are suitable for different business needs.