TikTok, Duolingo

"First of all, the Chinese are so nice, they're so sweet and so welcoming. They've over here teaching us Mandarin." ...
Duolingo has seen a surge in U.S. Mandarin learners as TikTok users explore Chinese social app RedNote amid a looming ban.
The social media app will likely disappear from U.S. app stores on Sunday following a decision by the Supreme Court.