Opening your study space…
YSR Studies is being tested
YSR Studies is being tested. Enter the tester code to try it — your account stays on this device, and there is no password to lose.
Step 1 of 2
Where are you studying?
This sets the level everything is taught at. You can change it later.
It sets how old you are, so your level moves up with you every September. You can skip it.
Under 18 we ask a parent or guardian to agree. Nothing stops while you wait, and you can add this later.
No answer in your deck was guessed by a model: each one was computed, found by running the code, or set when the question was written.
A code we know, or a university code we have material for, opens that course; when the code could be another university's, we ask first. Any other code makes your own course, built from the files you upload.
Course mapSuggested order, as the course teaches it
Your course is built from your own files: a model reads the text of each one and writes multiple-choice questions from it, each saying which file it came from. Nothing has checked these questions, and each is marked unchecked. Your files stay in your folder; their text goes to the model only to write the questions.
Build this deck
Verified practice, drawn from the course's own curriculum.
Nothing due right now
Every card you've studied is scheduled for later. Spaced repetition means coming back matters more than pushing on.
Session done
Card 1 of 1
Your recording stays on this device and is gone when you move on.
Choose one answer.
Press Enter to check. Write it however you'd write it on paper — the checker compares the mathematics, not the spelling.
How did that feel? Each button shows when you would see it again.
Background on this concept
Not part of the question — chosen for your level and what you are working on.
Public pages we are allowed to point at. We searched for the concept, never for anything you wrote.
Watch a lecture on this
Ranked by who stands behind the channel first, then how well it teaches the level, then how closely it matches.
Your tutor for this course
Look something up
Name the topic in a few words. Nothing is sent until you check the words and press Search.
Only the words you approve leave the app — and only to open libraries of papers and encyclopedias, never to a search engine that sees your chat.
The tutor coaches by default — it teaches the method and leaves you the last steps. Ask for the full answer and you'll get it, with the reasoning.
What people are reading
Five things a day, picked for what you study and where you are. Tap one to open it — that is the only thing that counts as interest.
Write a post
This week’s tips
Study tips we found this week, each one backed by more than one source we are allowed to use.
Search
Look something up properly
Ask a question. We read what we are allowed to read, write you a brief with its sources numbered, collect the PDFs you can open, and cut you a set of flashcards.
What you type is searched for you and kept in your own account. It is never shared with another student and never used to train anything.
My map
How your ideas connect
Your notes, the tutor replies you pinned and your course's own ideas, joined by lines that each say why they are there. Your map is kept with your account and is never used to search.
Drag from the dot on an idea to another idea to join them. With a keyboard: Tab to an idea, press C, move to another and press Enter; Esc cancels.
Connections
Ideas from books
Ideas that changed how people think
One idea from each of 38 classic books, in plain words. Each says where it came from and how it has held up since, including the ones that turned out to be wrong.
Work on an assignment, with your tutor beside it
Open a Word document or start a blank page.
Your work
Your own study materials
Bring in a handout, a page of notes or a past test. It stays yours — only you can see it, and you can delete it whenever you like.
In your folder
Drafts and their sources
Paste an essay draft. It stays in your folder. The tutor reads it to suggest words to search for sources, and you check those words before anything is sent.
Your papers
Save a paper from a research brief, or bring a PDF. When its licence allows it, or it is your own file, you can make flashcards from it and ask questions across your papers. Any other paper stays a link and a citation.
Nothing here is shared with anyone else, and nothing here is sent to a search engine. Deleting puts a file in the bin for 30 days first.
What you know, concept by concept
Checkpoints
A checkpoint is a short diagnostic game, never a mark. Asking for help is recorded, never penalised.
Your week
Built from your own records — concepts, answers and time — never from what you wrote. A new one arrives every Monday.
Watch for new papers
Add papers you rely on (their DOIs) and a few topic words. Every Monday we look for new open papers that cite them or match your words.
Study time
The clock runs while you are in the Tutor tab and when a reply is generated. Studying cards, checkpoints and progress cost nothing.
Today’s allowance
Your plan
Language
Text size
Kept on this device. Everything grows together, so nothing is cut off.
Your work is yours
Everything below is your own vault. Export takes it out whole, in plain files, whenever you like.
What we keep
Off by default. Your live chats are never touched by this — only ones you have archived.
Consents
Delete everything
This erases your vault, your cards, your progress and your chats, and bans this sign-in. Records of money and of consent are kept as records, with your personal details removed — that part is law, not choice.
Export first if you want a copy. This cannot be undone.