Vocabulary Builder gets the important half right — you don't really own a word until you've had to recall it, so quizzing beats passively re-reading. Capecho runs on that same active-recall belief; the twist is where the words come from: one keystroke and on-device OCR capture the words you actually trip over while reading — off any screen, in their own sentence — instead of a preset list. Frictionless capture in, active recall out.
