The DuoCards app allows you to learn any language with flashcards and videos. Use our vocabulary builder to find new words!

DuoCard is a free app to learn languages online. It's simple and modern, just swipe right on the cards you already know and swipe left on the ones you don't know. The cards will then be placed in a space based repetition algorithm to help you learn the language. It works great with public videos from YouTube.

The new language learning app is a great tool to learn English, Spanish, French, Portuguese, German, Russian, or any other language. Just swipe right on the cards you already know and swipe left on the ones you don't know. The cards will then be placed in a space-based repetition algorithm to help you learn the language.