Duolingo aims to democratize high-quality education. Duolingo is making good money doing good things. The tech company has plenty of opportunity to grow in the coming years. Duolingo is an ...

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 ...