Lex — Learn languages by reading and writing<br>A language-learning workspace for people who read and write.<br>Leveled reading, AI essay feedback, and a vocabulary that grows from the texts and essays you actually work on. One tool, thirty-four languages, no flashcard treadmill.<br>Start for freeBrowse the 34 languages →
The apps you've tried aren't teaching you the language.<br>They teach you the app.
Duolingo<br>Streaks, not language.<br>Five-minute drills you finish and forget by dinner. No reading. No writing. No place to actually use what you learn.
Anki<br>Flashcards in a vacuum.<br>You memorise a word in isolation, then never meet it in a real text. Your vocabulary lives in a silo — separate from anything you read or write.
Everything else<br>Three apps, three silos.<br>One tool for reading. One for drilling. One for writing. The words you save in one never come back in the others. You end up managing tools instead of learning.
Lex<br>One place for reading, writing, and vocabulary — each one feeds the next.<br>Read leveled texts and save the words you meet. Those saved words come back as exercises. Write essays with the vocabulary you've built and get feedback that points you to the next thing to fix. No juggling, no silos.
Read. Write. Practice.<br>Three parts of one workspace — each feeding the next.
Read at your level.<br>Short pieces calibrated to your CEFR level, A1 through C2. Tap any word, get a translation, and save it to your vocabulary in one motion.
Write and get feedback.<br>Pick a prompt, write an essay, and Lex tells you where your structure breaks, which mistakes are blocking you, and how your level reads.
Practice what you've saved.<br>Every word you save — from a text, a translation, or an essay — feeds spaced-repetition exercises. Your vocabulary and your reading share one workspace.
The language you're learning is probably already here.<br>Thirty-four languages, all shipped with curated starter content. Tap any to see where it's spoken.
🇬🇧English<br>🇫🇷French<br>🇪🇸Spanish<br>🇩🇪German<br>🇮🇹Italian<br>🇵🇹Portuguese<br>🇳🇱Dutch<br>🇵🇱Polish<br>🇸🇪Swedish<br>🇳🇴Norwegian<br>🇩🇰Danish<br>🇫🇮Finnish<br>🇮🇸Icelandic<br>🇨🇿Czech<br>🇸🇰Slovak<br>🇭🇺Hungarian<br>🇷🇴Romanian<br>🇬🇷Greek<br>🇧🇬Bulgarian<br>🇭🇷Croatian<br>🇺🇦Ukrainian<br>🇷🇺Russian<br>🇹🇷Turkish<br>🇮🇱Hebrew<br>🇸🇦Arabic<br>🇮🇷Persian<br>🇮🇳Hindi<br>🇨🇳Chinese (Mandarin)<br>🇯🇵Japanese<br>🇰🇷Korean<br>🇮🇩Indonesian<br>🇻🇳Vietnamese<br>🇹🇭Thai<br>🇹🇿Swahili
One quiet place, instead of three loud ones.<br>How Lex compares to Duolingo, Anki, and LingQ.
FeatureLexDuolingoAnkiLingQRead real texts at your levelWriting with AI feedbackSpaced repetition reviewOne calm place — no juggling
CEFR level estimate<br>A1 through C2, with a short justification.
Specific corrections<br>Real excerpts from your essay with suggestions.
What's working<br>Strengths in structure, vocabulary, and voice.
Language🇬🇧 English🇫🇷 French🇪🇸 Spanish🇩🇪 German🇮🇹 Italian🇵🇹 Portuguese🇳🇱 Dutch🇵🇱 Polish🇸🇪 Swedish🇳🇴 Norwegian🇩🇰 Danish🇫🇮 Finnish🇮🇸 Icelandic🇨🇿 Czech🇸🇰 Slovak🇭🇺 Hungarian🇷🇴 Romanian🇬🇷 Greek🇧🇬 Bulgarian🇭🇷 Croatian🇺🇦 Ukrainian🇷🇺 Russian🇹🇷 Turkish🇮🇱 Hebrew🇸🇦 Arabic🇮🇷 Persian🇮🇳 Hindi🇨🇳 Chinese (Mandarin)🇯🇵 Japanese🇰🇷 Korean🇮🇩 Indonesian🇻🇳 Vietnamese🇹🇭 Thai🇹🇿 SwahiliYour essay20 character minimum.0 / 2000<br>Check my essay
Three tiers. Pick whatever fits.<br>The 3-day trial covers everything. After that, pick a tier or stop — Lex never charges you without you explicitly subscribing.
Basic<br>$4/mo
Build vocabulary in 34 languages<br>Foundations reference — alphabet, phonetics, and grammar essentials for all 34 languages<br>5 exercise modes — flashcards, match-pairs, fill-blanks, multiple choice, typing<br>Themed mini-units that build skills step by step<br>3,000+ curated starter words across French, Spanish, Italian, German, English<br>Per-language CEFR tracking from A1 to C2<br>Word tags, bulk actions, search and card / table views<br>Light and dark themes<br>No ads. No tracking. Ever.<br>Export your vocabulary as CSV
Essay writing — in Pro<br>Reading section — in Pro<br>AI features + Foundations audio — in Max
Choose Basic<br>Most popularPro<br>$9/mo
Everything in Basic<br>Write essays with 70+ curated prompts across 7 topics<br>Custom essay topics — write about anything you want<br>Distraction-free essay editor with drafts and word count<br>Reading section — paste articles, emails<br>One-tap word lookup + phrase selection while reading<br>Hover any saved word to see its translation instantly<br>Save vocab on the fly as you read<br>Curated reading library — 60+ leveled texts<br>Filter reading by CEFR level<br>Markdown export of essays and reading texts<br>Print-friendly layouts
AI essay feedback — in Max<br>AI reading-text generation — in Max<br>AI word translation — in Max<br>Sentence-translation exercise — in Max<br>Foundations audio playback — in Max<br>Smart word recognition — in Max
Choose Pro<br>Max<br>$19/mo
Everything in Pro<br>AI essay feedback — up to 20 every day, with mistake list and CEFR level estimate<br>Essay feedback saved with each essay so you can track your progress over...