Anyone can ask AI for flashcards. That’s not the hard part. The hard part is knowing what you DON’T know – and that’s exactly what this does. The Study App Builder is a Claude skill for students (middle school through college) and parents of middle schoolers. Install it once. From then on, upload any study material – class notes, slides, a review packet, photos of handwritten notes – and Claude: 1. Interviews you first. What do YOU think matters on this test? Commit to your list. 2. Shows you what you missed – with evidence from your own notes (“your teacher wrote KNOW THIS next to the pump”). You confirm or skip each one. 3. Builds you a personal study app – one file that works on any phone or computer, offline, no account, progress saved on the device. Every app has five modes: Weak Spots (pre-loaded with the topics you missed in the interview), Flashcards that bring missed cards back around, a Quiz weighted toward your weak topics with every answer explained, Match games, and a printable Quiz Sheet with answer key so a parent can quiz out loud at the dinner table. Unlimited study apps – every test, every class, all year. Each app keeps working after finals. What you need: a Claude account on a paid plan (claude.ai Pro, the Claude desktop app, or Claude Code) – skills are a paid-plan feature. If you’re already paying for Claude, your subscription just became a tutor. Your download: the skill file plus a one-page install guide. Install takes about a minute. Parent of a middle schooler? Say so at the start and the skill switches to parent-led mode: it writes you a ten-minute Table Talk script to run with your student at the kitchen table, builds the app in their language, and hands you Parent Notes plus a printable quiz sheet for quizzing out loud. Now shipping as v2 – existing buyers re-download the zip from their account.