Learn LanguagesFaster withReal Content
Find videos tailored to your vocabulary. Add words to flashcards directly from YouTube, Netflix and news sites.
Users love us
Max M.
Learning Spanish
Langfour turns Spanish shows on Netflix into ready-made flashcards. It's the easiest way I've found to pick up new words.
Max M.
Learning Spanish
I love how Langfour recommends YouTube clips based on my vocabulary. It keeps me motivated to study Spanish every day.
Max M.
Learning Spanish
The spaced repetition tools have boosted my Spanish retention. Saving phrases from any video is so convenient.
Max M.
Learning Spanish
Being able to import my old flashcards and add new ones from Spanish news sites has streamlined my study routine.
Understanding, a Click Away
Selecting from the easiest 25% of videos boost your comprehension as much as learning 1500 words
Langfour's category-specific wordlists help you focus on words that boost comprehension for your interests.
Share of Words Known in
‘Travel’ Videos
Effortless FlashcardsFlashcards, Without the Effort
Save words instantly
See which words are not in your vocabulary yet, and save them with a single click
Reader mode for news
Enable instant word- and sentence translations for any news-page
Personalized recommendations
Get an always updated list of videos that most accurately match your vocabulary
Accelerate Your Learning
Even more features to set you up for success
Words in Context
Automatically generate sentences containing learned words, and effortlessly understand how they're applied.
Learn Faster, Remember Longer
Spaced repetition ensures you remember words long-term with minimal effort.
Import Existing Cards
Already using Anki or Quizlet? Import your existing cards in under a minute.