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Learn words. Remember them forever.

Smart flashcards, games, reading in the original and a helper that explains whatever trips you up. For any language.

One deck for every language you learn

  • enserendipity/ˌser.ənˈdɪp.ə.ti/
  • deFernweh/ˈfɛʁnˌveː/
  • essobremesa/so.βɾeˈme.sa/
  • ptsaudade/sawˈda.dɨ/
  • frflâneur/flɑ.nœʁ/
  • hiजुगाड़jugaad
  • arطَرَبṭarab
  • ruтоска/tɐˈska/
  • ja木漏れ日komorebi
  • deGemütlichkeit/ɡəˈmyːt.lɪç.kaɪt/
  • enpetrichor/ˈpe.trɪ.kɔːr/
  • frdépaysement/de.pe.iz.mɑ̃/

Review when you need to, so words stick

FSRS brings a word back just as you're about to forget it. Hard words come up more often, while the ones you know drift weeks and months ahead. Fewer reviews, and words that stay.

  1. Auto-lookup

    Add any word — we find definitions, phonetics, examples & translation instantly

  2. Review buttons

    Tap how well you remembered and the schedule adjusts

  3. Smart schedule

    Intervals adapt to you: a word you remember less well comes back sooner

Meet each word in real life

A video for any word

Find the word in YouTube videos where native speakers say it — the clip starts right at the sentence.

Photograph it, learn it

Take or upload a photo of an object: WordBonk identifies it in the language you are learning and adds a card with its picture.

Play. Read. Ask.

7 ways to have fun while learning

Not just boring flashcards. Practice with quizzes, typing challenges, audio games, and more.

  • Quiz
  • Match
  • Type It
  • Listening
  • Sentence
  • Fill Gap
  • Spelling Bee

Stuck? Ask the helper

Word Packs

Ready-made sets: Top 100, Travel, Business, IT, IELTS, Phrasal Verbs, Idioms. Or create your own.

  • Voice practice

    Speak out loud and hold real conversations using the words you've already learned.

  • Chrome Extension

    Right-click any word on any webpage — translate it and add to your cards without leaving the page.

  • Import Anywhere

    Import your existing vocabulary from Anki decks, CSV files, or Google Sheets in one click.

Learn to read in a new language

Upload your book and read it right here. Tap a word or phrase you don't get and the helper explains it in context. Save the words you need to your cards straight from the page.

  • Books in any format
  • Explains any phrase in context
  • Add to cards
  • Track progress

Progress you can see

Streaks, levels, achievements, a daily goal and a leaderboard. You won't want to skip a day.

Teach a class. Watch them grow.

Students join your class with a code. You set assignments, comment on their cards and see at a glance who's practising and who's falling behind.

  • Add by student code
  • Custom assignments
  • Comment on cards
  • Class leaderboard

Good to know

Short answers to what people ask before they sign up.

Try it with your own words

Yes. Every feature is free and there are no ads. The helper has a daily limit on requests. A Pro plan with higher limits is coming later, and everything essential stays free.

English, German, Spanish, French, Portuguese, Russian, Japanese, Hindi and Arabic. The interface comes in the same nine languages.

A word sticks better when recalling it takes a little effort. So a card doesn't come back every day but after growing gaps: a day, a few days, a week. Miss it and it returns soon. The gaps are worked out by the FSRS algorithm.

Yes, in PDF, EPUB, FB2, DOCX or TXT. No book of your own? The catalogue has books sorted by level.

Import your existing vocabulary from Anki decks, CSV files, or Google Sheets in one click.

Yes. Students join your class with a code. You set assignments, comment on their cards and see how each of them is doing.