Language learning app Duolingo has seen an over 200% spike in U.S. users learning Mandarin "out of spite" as many flee to Chinese app RedNote amid the uncertainty surrounding TikTok's future.

Shares of top-ranked online language learning site Duolingo went for a wild ride after it launched its IPO in mid-2021. On a weekly chart it formed a long IPO base. It topped a buy point last fall ...

Many Americans are joining RedNote, also known as Xiaohongshu, as a potential TikTok ban looms in the US. As they hop from ...