Turn your notes, PDFs and photos into a quiz.
Every answer shows the exact line it came from. Missed questions go to your mistake notebook and come back until you get them right — three days in a row.
Opportunity cost is the value of the next-best alternative you give up when you make a choice. Because every decision uses time or money that could have gone elsewhere, the true cost of anything is what you did not do.
A sunk cost is money or effort already spent that cannot be recovered; rational decisions ignore sunk costs and compare only future costs and benefits.
Economists call the extra benefit from one more unit the marginal benefit, and the extra cost the marginal cost; a rational choice continues an activity while marginal benefit exceeds marginal cost.
Highlighted = the line a question was made from. Tap any answer in the app to jump back to it.
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Three questions made from the notes in the screenshot: one multiple choice, one fill-in, one “explain why”. Answer, then see where the answer came from.
AI-generated from the source text. Always check against your own material.
- Multiple choice
A student skips a paid shift to study for an exam. In economics, the wage she gives up is her…
- Fill in
Money or effort already spent that cannot be recovered is called a ____ cost.
Type the missing word.
- Explain why
Why should a rational decision ignore sunk costs?
Answer in one or two sentences.
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How it works
Three steps. The third one is the point.
1 · Snap or paste
A photo of a textbook page, a PDF chapter, your own notes, an article. Up to about 45 pages per quiz.
2 · Take the quiz
Fill-ins, multiple choice, “explain why”, and one applied question. Each answer shows the line it came from.
3 · Re-drill your misses
Missed questions come back tomorrow, in three days, in a week — in a new form each time — until you get them right on three separate days.
Why it works
Built on what actually makes things stick.
Not another quiz generator. The parts that matter are the ones most tools skip: retrieval practice, spacing, and answers you can check.
Every answer shows its source
The exact sentence from your material. You check the AI, not the other way round.
Misses come back on a schedule
Spaced out and in a new form each time. A question is only “learned” after three correct days — not one lucky guess.
It knows what you think you know
Confident mistakes are the ones worth fixing first. You get a calibration score, not just a percentage.
The weekly quiz. Ten questions, every answer sourced.
Science, history, this week’s news — made with the same tool, checked by a person, with a source for every question. Score it, share it, dare a friend.
Take this week’s quizStart from whatever you have
Pricing
Pay per quiz, not per month.
One quiz is one set of 10 questions. Re-drilling, the notebook and grading never cost a quiz. Full pricing details.
Questions
Can I turn my notes into a quiz for free?
Yes. Every account gets 3 quizzes a month, no card needed. A quiz is a set of 10 questions made from up to about 45 pages of material. Re-drilling the questions you missed never uses a quiz.
What is an AI quiz generator from notes?
A tool that reads your own study material — typed notes, a PDF, a photo of a page — and writes questions from it. TakaQuiz adds the part that makes it stick: every answer shows the line it came from, and missed questions come back on a schedule until you get them right three days in a row.
Does it work with a PDF?
Yes. Upload a PDF with a text layer, or choose a page range for a long one. For a scanned PDF, photograph the page in the app instead.
What kinds of questions do I get?
Mostly fill-ins and short answers, a few multiple choice with plausible wrong options, two “explain why” questions and one applied question. Each carries an explanation and its source line. You can also switch to a lighter trivia-style quiz.
How does the mistake notebook decide when to ask again?
A missed question comes back the next day, then after 3, 7 and 14 days, in a different form each time. It leaves the notebook only after you get it right on three separate days.
Is TakaQuiz an active recall app?
Yes. Everything is built around retrieving from memory instead of re-reading, with spacing for the questions you miss and a confidence check on every answer.
Who is TakaQuiz for?
University students and adult learners preparing for exams: coursework, professional certifications, language tests, licensing exams. TakaQuiz is for people aged 18 and over.