Chinese equivalent of Google Docs. Integrates tightly with WeChat and QQ, so you can share a doc straight into a group chat. Main domestic rivals: 石墨文档 (Shimo) and 语雀 (Yuque).
Launched 2018, reached 200M+ monthly users during the 2020 remote-work boom. Famous for the volunteer-maintained 'flood rescue' document during the 2021 Zhengzhou floods, which went viral as a live crowdsourced emergency board.
