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RETAINIUM

Stop re-reading your notes and hoping for the best

Cramming the night before doesn’t stick and you know it. Prep is a new Retainium product that turns a topic or PDF into a quiz and matching cheat sheet so you can start practicing sooner — and walk into the exam ready, not guessing.

Prep · beta

Prep

Generate an interactive quiz and a matching cheat sheet for any topic. The first draft is a starting point — click in and adjust any part until it matches how you study.

  • First generation is free. Sign in, describe your topic, and get a formula-first sheet plus quiz side by side.
  • Pay only for more generations. Editing and customizing your pack stays free — you buy credits when you want another AI pass.
  • We’re looking for early users. Prep is in beta. Try it, tell us what breaks, and help shape what students get next.
Try Prep free

No card required for your first gen

Quiz yourself the way the exam will actually look

No more squinting at “x^2 + 3x - 5” and trying to imagine what it means. Every question and answer choice renders with real math notation, so you practice reading the same formulas you’ll see on test day. Open the demo below and try it yourself.

After the first draft, just click in and adjust

Prep writes a starting cheat sheet. Keep what helps, rewrite a line, drop in a formula you always forget — it edits like notes, and math works seamlessly. Click the calculator icon to insert notation, or switch to Calculate and send a result straight into the block.

Cheat sheet · first draft

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Made for math. Great for all sorts of students.

Retainium was designed with STEM students in mind, but whatever it is you’re trying to study, it’s a great place to generate a quiz and a cheat sheet and prepare for your exam.

Ready to study smarter?

Try Prep for a free quiz + cheat sheet, or sign in if you already have access.