Duolingo is a popular language-learning app that's been awarded the CNET Editor's Choice across multiple years.

Duolingo is known for its language courses, and now the app that teaches more than 40 foreign languages is helping users gain a new skill: how to play the game of kings.

'TikTok Refugees' are learning Mandarin Chinese on Duolingo for RedNote Duolingo's Mandarin Chinese learners grow by 216 percent ahead of TikTok ban.