Question: I'm looking for a language learning platform that uses spaced repetition to learn kanji and vocabulary in context.

If you're looking for a language learning platform that uses spaced repetition to learn kanji and vocabulary in context, jpdb is a great option. This platform is geared specifically for Japanese and uses a state-of-the-art spaced repetition algorithm, automatically generated i+1 sentence cards and millions of example sentences. It also offers personalized media recommendations and a world-wide progress graph, so you can learn at your own pace with customizable review intervals.

Another great option is Lingvist, which offers more than 50 language courses and uses contextualized learning powered by AI. It's designed to teach you vocabulary that's useful in real-world situations through spaced repetition and bite-sized lessons, and it's flexible and personalized for language learners.

If you're looking for a more general learning platform that incorporates spaced repetition, check out Quizlet. It offers a range of tools, including Magic Notes, Q-Chat and Spaced Repetition, to help you study and retain information. Quizlet covers a broad range of subjects and learning styles, so it can be a good option for more general language learning.

Last, Kaards is another flashcard tool that uses spaced repetition for language learning. It supports 70 languages and lets you create flashcard decks through AI generation or import from existing databases. The platform also offers motivational tools like a daily contribution calendar, leaderboard and stats dashboard to keep you engaged and motivated.