Instead of trying to dodge the ban, millions of TikTok users are jumping over to RedNote. Since RedNote is primarily designed for a Chinese audience, it defaults to Mandarin. This has led to a surpris

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

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

Duolingo says it's seen a massive spike in people learning Mandarin Chinese, possibly to better use the popular TikTok alternative, RedNote.

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.

The language-learning app Duolingo has seen a surprising trend emerge, the closer we get to the TikTok ban -- there's been a 216% spike in US users learning Mandarin compared to this time last year.

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

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.

Xiaohongshu is operated by Xingyin Information Technology Ltd., which is based in Shanghai and owned by the billionaire entrepreneurs Charlwin Mao and Miranda Qu. Xingyin holds a minority stake in a consulting and entertainment company based in Henan that is also funded by the provincial government, according to Wirescreen, a data platform.

The law that took aim at TikTok over national security concerns has prompted Americans looking for alternatives to download Xiaohongshu, a social media app that is popular in China.

As "TikTok refugees" flood to Chinese site RedNote, language learning app Duolingo has reported an over 200% spike in people learning Mandarin.