Pro is for people who want to finish.
The dictionary and public reading library stay free for everyone. Pro unlocks spaced-repetition lessons for the full vocabulary, the complete Etymology Atlas, and private book uploads. A1 lessons are free — try them before you upgrade.
Monthly
$15 /month
Full access to all CEFR levels during subscription.
Monthly recurring charge.
Annual
Save 33%
$120 /year
Full access to all CEFR levels during subscription.
Yearly recurring charge.
Payments secured by Stripe
Free stays useful. Pro gets personal.
Start with the public dictionary and A1 study. Upgrade when you want the complete study system and your own texts inside it.
Free
$0For browsing, reference, and trying the study loop.
- Full dictionary search with IPA, senses, examples, synonyms, antonyms, and etymology
- A1 spaced-repetition lessons and A1 Etymology Atlas access
- All public Missing Library books with CEFR highlights and word popups
- Public roots, affixes, idioms, grammar reference, and blog
- Saved progress, deck state, and study history with a free account
Pro
$15/mo or $120/yrFor serious learners building a lasting vocabulary system.
- A2–C2 word and phrase lessons with FSRS-5 scheduling
- Full Etymology Atlas across every CEFR level
- Private book uploads (.epub, .txt, .md) in My Library
- Activity dashboard, heatmap, retention forecasts, and weak-point tracking
- Minimal-pair listening practice, usage drills, and full review sessions
What Pro unlocks
Beyond the always-free dictionary, search, and A1 study.
- A2–C2 word & phrase lessons, the full Etymology Atlas across every CEFR level, and private book uploads for your own reading.
- Unlock every word at every CEFR level — A1 through C2
- Remember every word permanently — reviewed at the exact moment before you'd forget
- Meaning, spelling, listening, and recall quizzes for every word
- Full Etymology Atlas — explore how every word decomposes into Latin/Greek roots & affixes
- See your progress across the whole dictionary at a glance
- Know exactly which words are about to fade from memory
- Watch your mastery map turn green as you climb each CEFR level
- Upload private .txt books and read them with CEFR highlights
Frequently asked questions
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The dictionary is free and stays free. Search, pronunciation, etymology breakdowns, IPA, every core word, 10,000+ phrases and idioms, and all the roots and affixes.
Pro adds the spaced-repetition study layer on top, plus the full Etymology Atlas. A1 vocabulary is free to study; A2–C2 unlock with Pro.
If you're not sure, start with A1 spaced repetition. After you finish, and if you like our method, you can subscribe to Pro.
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Anki uses SM-2, an algorithm from 1987. FSRS-5 is a 2024 algorithm trained on millions of real reviews — it predicts when you specifically are about to forget each card and schedules the review there. Less time spent reviewing, better retention.
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Try the free A1 lessons first — that's your real trial. They use the same SRS, the same study UI, and the same Etymology Atlas Pro uses.
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You keep it. Streaks, review history, mastery levels, and card data are all preserved. You just can't start new review sessions until you resubscribe. The dictionary remains fully accessible.
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Public Missing Library books are free to read. Uploading your own private books (.epub, .txt, or .md) into My Library is a Pro feature.