I could not agree more with the observations of your columnist Miranda Green in her piece about the shortcomings of the Duolingo language-learning app (“Duolingo ... The icon on my phone ...

FILE - In this photo illustration the icon of the learning app Duolingo is pictured on a smartphone display. The migration to RedNote has fueled Duolingo’s growth as users rush to learn Mandarin.

About Duolingo Duolingo is the leading mobile learning platform globally. Its flagship app has organically become the world's most popular way to learn languages and the top-grossing app in the ...

According to the app, Duolingo has seen a 216 percent growth in users learning Mandarin Chinese over the last year, which is tied to the growing popularity of RedNote. Obviously there’s a ...

Americans have turned to the language-learning app Duolingo to study Mandarin and the Chinese social app RedNote as a ...