Upload your syllabus, answer timed speaking prompts, and let AI catch the gaps in your understanding, then build flashcards from exactly what you missed
3 free credits when you sign up · no card required
Vocalize is built around the Feynman Technique, the study method named after physicist Richard Feynman: the fastest way to find out what you don't understand is to try explaining it in plain language, out loud, as if teaching it to someone new.
Choose the idea from your syllabus you want to learn.
Explain it out loud in plain language, as if teaching a beginner. No jargon, no reading off your notes.
Wherever you stumble, go blank, or lean on jargon, that's exactly what you don't actually understand yet.
Go back to the material for what you missed, then explain it again until it's simple and clear.
Passive rereading feels productive but hides what you don't know. Saying it out loud forces active recall, the same thing an oral exam or a real conversation demands, so the gaps surface before test day instead of during it.
Manual flashcards, browsing, and importing from a file are unlimited and always free. Credits only cover the one thing that costs real money to run: sending your material through AI to write a flashcard set, a study plan, and a quiz.
3 credits
free the moment you sign up, no card required. Credits never expire, so buy more only when you're ready.
10
credits
$2.00
25
credits
$5.00
60
credits
$10.00
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Stop guessing what you know. Say it out loud, see exactly where you go blank, and walk into the exam with the gaps already closed.