Language-learning app Duolingo makes around $500 million annually, despite offering all of its lessons for free. WSJ explores how the company is using AI and A/B testing to keep users hooked.

TikTok U.S. users have been learning Chinese on Duolingo in increasing numbers amid their adoption of a Chinese social app called RedNote ahead of the TikTok ban. The U.S. law, scheduled to go ...

High-rolling investors have positioned themselves bearish on Duolingo DUOL, and it's important for retail traders to take note. \This activity came to our attention today through Benzinga's ...

Duolingo, Inc. is a language-learning website and mobile application, which engages in the development of a free language learning website and crowd sourced text translation platform. It offers ...

Many are now taking a crash course. The popular language-learning app Duolingo reported roughly 216% growth in new Mandarin learning in the U.S. compared to this time last year, with a sharp spike ...