Busuu is a language learning company founded in 2008 by Bernhard Niesner and Adrian Hilti, which is now a subsidiary of Chegg, Inc.. It offers structured courses in 14 languages through web and mobile apps, with a focus on combining expert-designed lessons with feedback from a community of native speakers. Busuu aims to make language learning easier and more effective through features like interactive community features, immersive speaking practice, and expert-crafted courses based on proven learning strategies.