Lexiko

Polyglot Vocabulary Builder

Free with In-App Purchases iPhone · iPad · Apple Watch 170+ Languages

Lexiko word list showing vocabulary in multiple languages

Master Words in Every Language

Build your multilingual vocabulary effortlessly. Add words and instantly see translations across all your selected languages.

Support for 170+ languages including English, Spanish, French, German, Japanese, Korean, Chinese, and more
Each word shows translations in all your languages at once
Definitions fetched automatically in your source language

Review with Flashcards

Reinforce your learning with built-in flashcard mode. Review vocabulary at your own pace.

Random sets of 5 words per session
Tap to flip and reveal translations and definitions
Track your learning progress over time

Add Words Instantly

Capture new vocabulary the moment you encounter it. Smart autocomplete helps you spell correctly.

Smart language detection for effortless entry
Share words directly from Safari, Books, or any app
Add personal notes to any word

Learn on Your Home Screen

Keep vocabulary visible with home screen widgets. Learn passively throughout your day.

Widget shows your latest or favorite word
Quick reference without opening the app
Multiple widget sizes available

Lexiko on Apple Watch showing Word of the Day

Learn from Your Wrist

Lexiko on Apple Watch puts your vocabulary within reach. See the Word of the Day on your watch face, browse words, and run quick review sessions — all from your wrist.

Word of the Day complication on any watch face
Browse your full vocabulary and review flashcards
Syncs automatically via iCloud

Hey Siri, Add a Word

Five Siri Shortcuts let you build vocabulary hands-free. Add words by voice, look up definitions, check your stats, or start a review — all without opening the app.

"Add a word to Lexiko" — capture vocabulary by voice
"Look up a word in Lexiko" — get definitions instantly
"Review words in Lexiko" — jump into flashcards
"How many words in Lexiko" — check your stats

Start Building Your Vocabulary

Whether you're learning your second language or your tenth, Lexiko helps you capture, organize, and review vocabulary across all the languages you love.

Download Free on App Store