Popular TikTok accounts such as DuoLingo shared trade secrets before the app went dark in the US, while creators confessed to long-running inside jokes.

Millions are joining RedNote ahead of the TikTok ban. But the app’s default language is Mandarin. “Oh so NOW you’re learning Mandarin,” Duolingo tweeted on Monday.

Duolingo shares have jumped this week, as the number of Americans learning Mandarin on the app has soared 216%. That's as China's RedNote is now the most downloaded free app on Apple's App Store ahead of the TikTok ban.

"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.

That One Sound is a column from internet culture reporter Charlotte Colombo that explores the origin of popular sounds heard on TikTok. On Jan. 17, the Supreme Court ruled that banning TikTok is not a violation of users’ First Amendment rights. This paved the way for that much-dreaded ban to come into effect from Jan. 19.

A roundup of the most shocking confessions that influencers like Charli D'Amelio, Meredith Duxbury, and Hayley Kalil made before TikTok's ban on Jan. 19.

TikTok may be back, but that hasn't prevented other Chinese competitors from gaining users. In the lead-up to a ban on TikTok — which kicked off Sunday

This surge in interest comes as TikTok faces a ban in the US that will take place on Sunday, January 19. With TikTok potentially shutting its doors, American users are turning to a similar app called RedNote (also known as Xiaohongshu), a Chinese social media platform.

Americans are running to the language app to learn Mandarin as they flood Chinese app RedNote in response to the looming TikTok ban.

As millions of U.S. TikTok users flock to Chinese-language social app RedNote in light of a possible TikTok ban, more Americans are trying to learn Chinese than ever. Duolingo, a language learning app used by millions,