Chatwork
Chatwork is the most widely used business chat service among Japanese companies, with over 400,000 organizations in Japan. It is essential for collaborating with Japanese clients and partners.
If you're entering the Japanese market, a Chatwork account is practically mandatory. Some Japanese startups use Slack, but the majority of SMEs treat Chatwork as the standard — you'll encounter it constantly in client communication. Think of it less as a features comparison and more as the channel your Japanese partners already use.
Do I need Chatwork to work with Japanese companies?
Most Japanese SMEs use Chatwork, so having an account makes communication significantly smoother.
Is it less capable than Slack?
Fewer app integrations, but the simple UI and strong Japanese support make it better suited for Japanese team collaboration.
Can I invite external clients?
Yes, external users can be invited by email to group chats.