WordDex

Turn any word into a lesson. Scan a word on a menu, sign, or panel — WordDex builds matching, fill-in-the-blank, sentence & speaking practice around it. Free to start.

You've built the habit. You've done the beginner lessons. But you still can't read a menu, a sign, or a page of native text without reaching for a translator.

That's the gap WordDex closes. See a word in the wild, scan it, and it becomes a full 12-round lesson — matching, fill-in-the-blank, sentence building, and speaking practice — built from the exact words your real life puts in front of you. Learn Japanese, Korean, Chinese, Spanish, French, German & more. Free to start.

Built by a language learner and solo dev in Tokyo.

HOW IT WORKS

See a word in the wild — on a menu, a sign, a manga page Scan it with your camera WordDex builds a 12-round interactive lesson around it: match, fill in the blank, build the sentence, say it out loud Review with spaced repetition until it sticks — then it's part of your collection

WHAT SETS WORDDEX APART

Your Words, Not Ours: Other apps teach their word list. WordDex builds lessons from the vocabulary your real life serves you. Speak, Don't Just Tap: Voice practice in every lesson — say the word, build the habit of actually using it. Understanding Over Memorization: Word Scope goes deeper than definitions — real conversational usage, grammar context, and what natives would say instead. Made by a Learner: One developer in Tokyo who needed this app to exist. No growth team, no dark patterns.

GO DEEPER WITH WORD SCOPE Tap any word for a deep dive — how it's used in real conversation, why it matters grammatically, and words native speakers would reach for instead. Nuanced tone and idiom analysis, not just dictionary definitions. The difference between knowing a word and understanding it.

COLLECT WORDS FROM THE WILD

Your Personal Dex: Every word you catch becomes a card in your collection — a growing record of the language you've met in real life. Spaced Repetition: The right cards come back at the right time. Match Game: Pair words with meanings before the clock runs out. Streaks & Badges: Rewards for consistency, not perfection.

START BEFORE YOU EVEN SCAN Free beginner decks for every language WordDex supports — turn them into full lessons the same way you would a word you found in the wild. Plus pre-loaded JLPT, TOEIC, and TOPIK decks with curated exam vocabulary. You're never staring at an empty library.

15+ LANGUAGES Japanese, Korean, Chinese, Spanish, French, German, Arabic, Hindi, Italian, Portuguese, Russian, Thai, Vietnamese, Tagalog, and Esperanto. One app for every language you're learning. More to come!

BUILT FOR ACCURACY Advanced text recognition delivers reliable translations, natural readings, and context-aware analysis across complex scripts — including Furigana, Pinyin, and Romanization.

FREE TO USE, EVERY DAY Scan, learn, and review at no cost. WordDex Premium unlocks unlimited scans and lessons, full Word Scope access, and an ad-free experience.

WordDex. See a word. Learn it. Collect it.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/