Does the AI do the studying for me?

No, and that is the point. It writes questions from your material and checks your answers, but the thinking is yours. AI can make mistakes, so every question points back to the pages it came from.

What can I study with it?

PDFs, Word documents and PowerPoint slides, or a link. Word and PowerPoint files open in the same reader as PDFs.

There is a free plan that needs no credit card, and a Pro plan for heavier use. The pricing page has what each plan includes.

Does it work offline?

Yes. Once you have signed in on a device, your material, cards and notes stay available without a connection, and your changes sync when you are back online. Generating questions and checking answers need a connection.

Who makes Student OS?

Students. Student OS is built by students, for students, and it is only for students.

Built on retrieval practice and spaced repetition

Stop rereading.
Start remembering.

Student OS turns your lecture slides into questions, shows exactly which ideas your answer missed, and schedules flashcards so you walk into the exam already knowing it.

Start studying free See how it works

Free plan, no credit card. Works with PDF, Word, PowerPoint and links.

A Student OS study session: Java lecture slides on the left, and on the right a question with feedback on each idea of the student's answer and a follow-up question

Feedback on a student's answer: one idea marked got it, one marked nearly, and a follow-up question aimed at the missing idea

Rereading feels like studying. It isn’t.

Rereading and highlighting make a page feel familiar, so it feels like you know it. Then the exam asks you to explain it.

A major review of study techniques rated practice testing and spaced practice as the most effective, and rereading and highlighting among the least.¹ Student OS is built around the first two.

The usual way

Reread the slides the night before
Highlight whatever looks important
Find the gaps in the exam hall

With Student OS

Answer questions written from your own slides
See which ideas you missed, and practise exactly those
Review each card just before you would forget it

How it works

One loop: understand it, then keep it.

1
Bring your lecture
Drop in your slides or notes, or paste a link. Your material opens right beside your questions, so the source is never more than a click away.
- PDF, Word and PowerPoint, or a link
- Every question points to the pages it came from
2
Explain it in your own words
Answer questions written from your material. Feedback marks each idea you got, nearly got or missed, then gives you a follow-up aimed at the gap.
- Feedback on every idea, not just a score
- Follow-ups target exactly what you missed
3
Keep it until the exam
Turn what you learned into flashcards, written by you or drafted for you. FSRS, the open-source scheduler also used by Anki, brings each card back just before you would forget it.
- Cards link back to their source page
- Short daily reviews instead of a night of cramming

Everything around it

The rest of your semester, in the same app.

Plan for exams, see how ideas connect, and keep your week in order, without juggling five apps.

Exam planner

Know you are on track before exam day

Set the date and what it covers. Student OS works backwards from the exam and tells you how many cards to review today.

An exam plan for a Psychology midterm: on track for about 95% recall on exam day, the cards in scope by state, today's 10 cards, and a day-by-day review plan

Your week in one place

Deadlines, exams and study blocks on one calendar, with boards for assignments.

Notes beside the slides

Write lecture notes next to the material they are about, in the same session.

Concept map

See how the ideas connect

Map the concepts in your course and what each one builds on. AI suggests links; you decide which are true.

A concept graph linking learning-science ideas such as encoding, retrieval practice and spaced repetition, with one AI-suggested link waiting for review

Focus sessions

Run a focus timer and see where your study hours actually go.

Works offline

Study on the train or in a library dead zone. Everything syncs when you are back online.

Progress you can see

Streaks, recall and study time across every subject.

Organised by course

Material, decks, notes and exams filed under the subject they belong to.

Find anything

Jump to any note, card, deck, task or study session with one search.

Questions students ask first.

Does the AI do the studying for me?: No, and that is the point. It writes questions from your material and checks your answers, but the thinking is yours. AI can make mistakes, so every question points back to the pages it came from.
What can I study with it?: PDFs, Word documents and PowerPoint slides, or a link. Word and PowerPoint files open in the same reader as PDFs.
What is free?: There is a free plan that needs no credit card, and a Pro plan for heavier use. The pricing page has what each plan includes.
Does it work offline?: Yes. Once you have signed in on a device, your material, cards and notes stay available without a connection, and your changes sync when you are back online. Generating questions and checking answers need a connection.
Who makes Student OS?: Students. Student OS is built by students, for students, and it is only for students.

Your next exam is coming either way.

Bring one lecture, answer a few questions, and see what you actually know. It takes ten minutes and costs nothing.

Start studying free Free plan, no credit card. Pro is €4.99 a month.

1. Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., and Willingham, D. T. (2013). Improving students’ learning with effective learning techniques. Psychological Science in the Public Interest, 14(1), 4-58.

Stop rereading.Start remembering.