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.

Americans have turned to the language-learning app Duolingo to study Mandarin and the Chinese social app RedNote as a potential alternative to TikTok, which recently faced a temporary ban in the U.S.

The article " Duolingo: An Unexpected Benefactor From the TikTok Ban " first appeared on MarketBeat.

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

Language learning app Duolingo has seen an over 200% spike in U.S. users learning ... Among all free iPhone apps, RedNote, known as Xiaohongshu in Chinese, is currently the top social networking app on the Apple App Store. Many TikTok fans angry about ...

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.

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.

Language learning app Duolingo has seen an over 200% spike ... Among all free iPhone apps, RedNote, known as Xiaohongshu in Chinese, is currently the top social networking app on the Apple ...

When TikTok went off the air (to use a very old-fashioned phrase), there was a scramble to find an alternative to its shortform video feed — and a similar scramble by various social networks to provide that alternative. (In fact, while I was writing this, Tumblr launched its new Tumblr TV feature.) The question is: how successful are they?