Past-exam practice, graded
Know what will cost you points — before the exam does.
Upload a past exam, take it on the clock, and write your answers by hand. Snap a photo and Qenot grades every answer against a rubric — then shows exactly where your points went and what to fix.
Grading is study guidance, not an official grade. Your instructor grades the real thing.
Entropy always increases. which law? So you can't turn all the heat into work because some heat has to go to the cold reservoir. That's why efficiency is less than 1. why? show it
Question 2 (a)
½ Partly · 3/6 pointsThe conclusion is right, but the law is stated loosely and the reason is asserted rather than argued.
Missing concepts
- A formal statement of the second law (Kelvin–Planck)
- Why rejected heat follows from the entropy balance
Weak area
Why studying feels like it's working
Rereading feels like studying. It isn't.
You highlight the chapter, reread the slides, and it all feels familiar — until the exam asks you to produce it from memory. Familiar isn't the same as known.
How much of a passage students remembered a week later
Ten study methods reviewed. Two rated high-utility.
- Practice testing
- Spacing your practice out
Rereading and highlighting were both rated low.
Qenot is built on exactly those two — so the hours you put in go toward the GPA you're working for.
Three steps between you and knowing where you stand.
- Step 1
Upload a past exam.
A PDF or a photo of the paper. Qenot finds the questions and how many points each is worth.
- Step 2
Take it on the clock.
Type your answers, or write them on paper the way you will in the exam room and photograph each one.
- Step 3
Get it graded.
Points for every part, the rubric line behind them, what a full-points answer needed — and your weak areas, ranked.


What you get back
This is a real graded report.
The questions, what the student wrote, the points awarded and why. The data is an example; the screen is the one you'll use.
- Points for every part of every question
- The reason behind each point, in plain words
- What was missing, and how to write it next time
- The full-points answer next to yours
- Your weak areas, ranked by the points they cost
Recall
Walk into the exam still knowing it.
Add anything you need to remember — a formula, a definition, a mistake you made on a practice exam. Recall brings it back just before you'd forget it: in 3 days, a week, a month, three months. Tell it your exam date and it makes sure you know it then — for as long as you need it.
One card, coming back when it matters
Carnot efficiency: η = 1 − T_c / T_h
- 3 days
- 1 week
- 1 month
- 3 months
- Exam day
Weak areas from a graded exam go straight in.
Teach-back
Explain it out loud. Find the gap.
Teach-back asks you to explain a concept, listens, and asks the follow-up question that shows what you're missing.


When you're stuck
Stuck at 1 a.m.? Ask — and see exactly where the answer came from.
Ask anything about your course and get an answer built from your own lectures and notes, with the page it came from. Click the citation and the PDF opens right there.
Highlight a sentence you don't get and ask about it directly.


From your own material
Bring whatever your professor gave you.
Turn it into notes, summaries, flashcards, multiple-choice quizzes, fill-in-the-blank and written tests — every one traceable to the page it came from.
- PDFs
- Slides
- Word docs
- Scans and photos
- YouTube lectures
- Web pages
- Your own notes
Research
Research reports.
Ask a question and Qenot searches the web — academic sources first — reads about a dozen pages and writes a cited report you can study from.


Trust
Grading you can check. Material that stays yours.
How grading works
- Every answer is graded against a rubric, and you see the rubric line behind every point.
- The full-points answer is shown next to yours, so you can check the grade yourself.
- It's study guidance, not an official grade — use it to find what to fix, and let your instructor grade the real thing.
Your material stays yours
- What you upload is private to your account. Nobody else can see it.
- Delete any file, topic or your whole account whenever you want — and download everything first if you like.
- We don't sell your data or show you ads.
- Read the privacy policy
Start free. Upgrade when finals get serious.
Questions
Before you sign up
How accurate is the grading?
It grades against a rubric and shows you the reasoning for every point, plus the full-points answer, so you can judge it yourself. Treat it as a strict study partner, not your instructor — it's study guidance, not an official grade.
What kinds of exams work?
Anything with written questions — short answers, long answers, calculations, multiple choice. Upload it as a PDF or a photo. Diagrams in questions are kept; diagrams you draw in answers are read as well as a photo allows.
Can I really write my answers by hand?
Yes. Write on paper, photograph each answer, and Qenot reads your handwriting before grading it. Clear photos work best.
Where do I get past exams?
From your course site, your department, your professor, or study groups. Upload only exams you're allowed to use.
Is my material private?
Yes. What you upload is private to your account, and you can delete any file, topic or your whole account whenever you want. We don't sell your data or show you ads. The privacy policy has the details.
What's free?
Grading for 2 past exams a month, 5 study sets a month, one research report to try, and unlimited Recall and focus timer. No card needed.
Is there a free trial?
Yes — the Student plan starts with a 7-day free trial. You add a card, nothing is charged during the trial, and if you cancel before it ends you pay nothing. One trial per person.
Can I cancel anytime?
Yes. Cancel during the trial and you're never charged; cancel later and you keep your plan until the end of the period you paid for. Payments after the trial aren't refunded, except where the law requires.
Which subjects does it work for?
Any subject taught from written material — sciences, engineering, business, humanities, medicine. It's strongest where exams test understanding you can write down.
Your next exam is already on the calendar. Your practice can start tonight.
Grading is study guidance, not an official grade. Your instructor grades the real thing.

