Tap any word.
Know it instantly.
How it works
Tap
Point your camera at any text — a book, a sign, a menu, a screen. Tap any word. The definition appears instantly. One gesture, zero typing.
Capture
Save words to your personal library. Definitions, part of speech, examples, etymology — all stored offline. Build your vocabulary as you read.
Remember
Spaced repetition brings your words back at the perfect intervals. After a few weeks, they’re no longer words you looked up. They’re words you know.
Philosophy
The world is full of words that are almost yours. We help you keep them.
Features
Instant definitions
Point your camera at any text. Tap a word. Definition, part of speech, examples, and etymology appear instantly. The fastest dictionary you’ve ever used.
Spaced repetition
A proven algorithm decides when each word returns. Three review phases adapt to your progress — from recognition to active recall. Science handles the rest.
Context-aware definitions
Piksi reads the sentence, not just the word. "Nous avions faim" — it knows avions is the verb avoir, not a plane. The right meaning, every time.
Offline definitions
Camera, OCR, dictionary, and spaced repetition all work on your device. Premium users get a full offline dictionary. Works on a plane, in a cabin, anywhere.