Duolingo is arguably the most recognized language learning app, known for its game-like interface that makes starting a new language feel fun and accessible. Through points, streaks, and leaderboards, it excels at motivating users to build a consistent daily practice habit. The bite-sized lessons are ideal for learning vocabulary and basic sentence structures on the go. However, the platform offers weak explicit grammar explanations and limited opportunities for real speaking practice, meaning its content can feel shallow for those aiming to move beyond a beginner level. It serves best as an engaging starting point or a vocabulary-building supplement.

Lingvist is a vocabulary-building tool that uses AI and spaced repetition to teach you the most statistically relevant words in your target language. It presents words in the context of full sentences, helping with comprehension. The platform continually adapts to your performance to optimize learning speed. While it is highly effective for rapidly expanding vocabulary, it offers minimal grammar instruction and no conversational practice, making it best used as a supplement to a more comprehensive program, especially for intermediate learners.