Pick a level and drill its vocabulary with spaced-repetition flashcards. Our SM-2 algorithm shows each word right before you forget it — the most efficient way to make 10,969 words stick. Free, no account needed.
Quick Answer: The best way to practice HSK is spaced repetition. HSK One's free flashcards use the SM-2 algorithm to schedule reviews for all 9 levels (10,969 words). Practice 10–15 minutes daily and your progress is saved automatically — no account required.
Yes, 100% free with no limits. No account, no paywall, no daily caps. Practice as much as you want across all 9 levels.
Spaced repetition schedules each flashcard review at the moment you are about to forget it. The SM-2 algorithm powers Anki and HSK One's flashcards — the most evidence-backed method for long term vocabulary retention.
Yes. Progress is stored on your device automatically, so you can pick up where you left off — no sign-up needed.