President Xi Jinping has touted people exchanges as the foundation of healthy US ties. A flood of TikTok “refugees” to Chinese app Xiaohongshu may test his limit for such unscripted interactions.

The app that Americans are flocking to as a TikTok alternative is Xiaohongshu, or RedNote, which translates to “Little Red Book.” This name carries significant historical weight, as it alludes to Mao Zedong’s Little Red Book, a mandatory collection of his quotes and philosophies that symbolized the Cultural Revolution in China.

As the potential ban on TikTok, a cultural sensation, approaches, here’s what you need to know about Xiaohongshu and other apps that social media users are considering.