Last updated 08-14-2026
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Root
Root turns vocabulary study into a garden you water for a few minutes a day. Search more than 70,000 words across eight languages with built-in meanings, IPA, and audio, tap once to plant a word in your deck, and spaced repetition brings it back on separate schedules for recognition, production, and listening. Decks, reviews, stats, and the word map stay on your phone and work without a signal.
Most flashcard apps treat every drill the same. Root runs sixteen exercise types across those three skills, maps each mastered word to one of 58 hand-drawn plant species, and syncs progress when you reconnect. An AI tutor chats in your target language, corrects what you write, and lets you plant any word it suggests with one tap.
Language learners who want short daily sessions, offline study, and a visual progress garden use Root on the web or Android. The Beginner plan is free with one deck and 500 AI tokens, paid tiers add unlimited decks and more tutor usage, and the project is open source if you want to self-host.
70,000+ words across 8 languages with IPA and audio built in
16 drills split across recognition, production, and listening skills
Offline decks, reviews, garden, and word map sync when you reconnect
58 hand-drawn plant species tied to each word you master
AI tutor corrects sentences and lets you plant suggested words in one tap
Beginner plan free with 500 AI tokens and unlimited flashcard practice
Works fully offline with sync when you reconnect
Separate spaced repetition schedules for listening, reading, and production
70,000+ pre-built words with IPA and audio across eight languages
Garden metaphor with 58 plant species makes progress visual
Open source and self-hostable for privacy-focused learners
Android APK only; no iOS App Store listing on the homepage
Free Beginner plan limited to one deck and 500 AI tokens
Smaller language catalog than major apps like Anki shared decks
Is Root free to use?
Root offers a free Beginner plan with one deck, unlimited words on that deck, unlimited flashcard practice, 500 AI tokens, and full statistics. Paid Starter and Premium plans add unlimited decks and more AI tutor usage.
How much does Root cost?
Root's Starter plan costs 4 euros per month with 2,000 monthly AI tokens and unlimited decks. The Premium plan costs 8 euros per month with unlimited AI usage and unlimited milestones.
Does Root work offline?
Yes. Root stores your decks, cards, reviews, garden, and stats on your phone. Watering plants and the word map work without a connection, and activity syncs when you come back online.
How many languages does Root support?
Root includes more than 70,000 words across eight languages. Each entry ships with meanings, IPA pronunciation, and audio so you can search and plant words without building your own flashcards.
What drills does Root include?
Root runs sixteen drill types across three skills: recognizing (pick the meaning, true or false), producing (fill the gap, build sentences), and listening (type what you hear, hear and pick). Each skill has its own spaced repetition schedule.
Can I use Root on Android?
Root offers a direct Android APK download from rootvocab.com and a web app you can open in any browser. Words you plant on the web appear in the mobile garden after you sign in.