How it works
Create a stack
Click on the "Create a stack" button. Give your stack a name and description, add you target language. Done! You are ready to add up your vocabulary!
Create your flashcards
Once your stack created, you can semlessly add built-in blocs such as synonym, slang or case blocks to create perfect flashcard. The best part? You do not even fill blocks yourself. Our AI does the heavy lifitng!
Review your flashcards
2 modes: Standard or Intelligent. Use standard mode to review your stack regardless of whether you already know your flashcards or not. Use intelligent mode to review your stack with our advanced FSRS algorithm to optimize long-term retention.
Track your progress
Your dashboard shows your review streaks and memory retention across all your stacks. Manage your knowledge and increase it on a daily basis.
Share and explore
Every Stack created can be made available for the community. You can also explore stacks from other Noos users and import them directly into your library.
Powered by FSRS
FSRS (Free Spaced Repetition Scheduler) is a state-of-the-art open-source algorithm developed from decades of memory research. Unlike older systems that rely on population averages, FSRS models your individual memory curve.
This means the schedule adapts to you: how fast you forget, how quickly you recover, and how well certain types of cards stick. The result is fewer wasted reviews and deeper, more reliable retention.