Lingvist

Lingvist's AI analyzes your initial responses to determine your current vocabulary knowledge and places you at the appropriate proficiency level. It then continuously adjusts the difficulty and word selection based on your recall accuracy and learning speed, so you never waste time on words you already know.

Lingvist supports over 60 language course pairs across 50+ languages. From English, you can learn French, Spanish, German, Italian, Dutch, Russian, Japanese, Portuguese, and more. Additional pairs are available from other base languages like German and Spanish.

Custom Decks allow you to input any text, word list, or topic-specific content, which Lingvist then converts into a structured flashcard course. The AI generates example sentences and applies spaced repetition scheduling, making it useful for industry-specific or hobby-related vocabulary study.

Lingvist focuses specifically on vocabulary acquisition through flashcard-based spaced repetition, while Duolingo uses gamified lessons covering grammar, reading, and listening. Lingvist is generally considered more efficient for rapid vocabulary growth, especially for intermediate and advanced learners.

Lingvist primarily requires an internet connection to sync your learning progress and access course content. Some limited offline functionality may be available depending on cached data, but full features work best with a stable connection.