LingQ is a language learning platform built on the principle of comprehensible input. It provides a vast library of articles, podcasts, interviews, and books, often with accompanying audio. As users read and listen, they can instantly look up new words and save them as "LingQs" for later review with a built-in spaced repetition system. The app visually tracks vocabulary growth, allowing learners to choose content suited to their level. It's an excellent tool for intermediate to advanced learners looking to expand their vocabulary and improve comprehension through massive exposure to authentic material.

Busuu offers well-structured courses that balance vocabulary, grammar, and practical application. Its standout feature is the integrated community, where learners can submit writing and speaking exercises for feedback from native speakers. While the core curriculum provides a solid foundation from beginner to intermediate levels, the quality and speed of community feedback can vary. The app's speech recognition tool is functional but not its main strength, making Busuu a strong choice for those who appreciate guided learning supplemented by human interaction.