Duolingo shares climb 7% as users swarm to app to learn Mandarin

Group 1 - Duolingo shares increased nearly 7% due to a significant rise in users learning Mandarin, with a 216% increase in Mandarin learners compared to the previous year, while Spanish learners grew by 40% in the same period [1][4] - RedNote, a Chinese social media app, has become the No. 1 free app on the Apple App Store, contributing to the surge in Duolingo's Mandarin learners [2] - The U.S. user exodus from TikTok has benefited RedNote, which saw a 20-fold increase in U.S. app downloads over the last week [4] Group 2 - Duolingo offers courses in 42 languages, with 48.8 million Spanish learners, 27.3 million French learners, and 10.7 million Chinese learners [4] - Duolingo's shares rose by 43% last year, outperforming the Nasdaq's 29% gain [5]