RedNote has 300 million users, the bulk of those being young women, according to TechCrunch. TikTok, for its part, has 170 million American users. That’s attracted loads of investor attention, with backers including Tencent, Alibaba, and GGV Capital. It’s widely seen to be considered an IPO candidate.

RedNote has been thrust into the limelight after more than half a million TikTok users recently joined the platform in protest against a likely imminent ban on the short video app in the United States.

With the TikTok ban looming, many creators may have already found a replacement and it’s a Chinese app called REDnote. Here’s what you need to know about it.