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.

"First of all, the Chinese are so nice, they're so sweet and so welcoming. They've over here teaching us Mandarin."

Many Americans are joining RedNote, also known as Xiaohongshu, as a potential TikTok ban looms in the US. As they hop from TikTok to RedNote, some of the so-called TikTok refugees are learning Mandarin to bridge the language divide on the Chinese app.

Despite the massive popularity of RedNote in the United States and the different corners of the globe, a majority of its users are still mainly speaking Chinese, and this language barrier has Duolingo racking up its numbers.

RedNote is a foreign-owned app, and experts warn that it could be attacked by the same law that is now banning TikTok.

There’s been a huge influx of TikTok users learning Mandarin by chatting with Chinese Xiaohongshu users or downloading language learning apps like Duolingo. “Started learning in Duolingo and ...

Duolingo has seen a surge in U.S. Mandarin learners as TikTok users explore Chinese social app RedNote amid a looming ban.

Can RedNote sustain its rapid rise to success with US users? Even with a TikTok ban and Duolingo boost, it faces plenty of headwinds.

TikTok U.S. users have been learning Chinese on Duolingo in increasing numbers amid their adoption of a Chinese social app called RedNote ahead of the

How the brand tapped data-driven storytelling and cross-departmental collaboration to turn the disruptive moment into a win.

The company confirmed to CNBC that there's been a 216% increase in Mandarin learners using the app compared to a year earlier. For context, Spanish, one of the most popular languages on the app, has seen a 40% increase over the same period, Duolingo said.

The new US president, Donald Trump, has given TikTok a reprieve one day after a law came into effect banning the Chinese-owned app in the US on national security grounds. Trump, who has previously expressed admiration