New Your own custom AI language teacher New Smart scrolling, replacing doom scrolling
For high school, university and IELTS
The study app that understands you.
Record a lecture, paste a YouTube link or bring your own notes. YSR Studies turns them into organised study notes and flashcards, and tells you what's been checked.
5 hours of study time every month, free. No card needed.
Foundations of limits
A pizza is cut into 8 equal slices. You eat 3 and your friend eats 2. What fraction of the pizza is left?
3/8. 8 slices, 5 eaten, 3 left — 3 of the 8.
✓Added to your deck
00:00What a derivative measures
04:20The slope of a tangent line
09:05The power rule, worked
Example output, shortened.
Three ways in
A lecture you sat through, a video you watched, notes you wrote at midnight. Bring it in, and it comes back organised.
Live lecture recording
Press Record when class starts and Stop when it ends. One tap turns the recording into organised study notes: headings, key terms in bold, what was said folded underneath. They're saved in your Notes.
In short: a limit describes the value a function approaches as its input gets close to a point, even where the function isn't defined.
▸ What was said
Instant notes and flashcards
Every set of notes comes with flashcards drawn from it. Tick the ones you want and they go straight into your deck, scheduled to come back just before you'd forget them. Bring your own text, a paper or a lecture: same thing.
What does a limit describe in calculus?
The value a function approaches as the input gets arbitrarily close to a point.
✓Keep
How do you simplify (x² − 1) / (x − 1)?
Factor the top into (x − 1)(x + 1) and cancel (x − 1).
✓Keep
YouTube to study notes
Paste any YouTube lecture. You get notes in sections, each with its timestamp, so a tap takes the video straight to that moment. No captions on the video? Paste its transcript instead.
In our production test on 9 October, a lecture video became seven timestamped sections in under ten seconds.
New · Study Scroll
A feed in the Home tab. Each post is a true story from a real study or a real book — psychology, history, money, persuasion, science — told in six beats as you scroll, with its source on every frame. What you've scrolled goes to the back, so nothing comes round until you've seen it all.
Fast, and honest about it
"It's confidently wrong."
Questions from your course are checked against the course's own answer key; the checker compares the mathematics, not the spelling. Anything made from your own material is marked Unverified and doesn't count toward your mastery.
UNVERIFIED"It does the work, so I don't learn it."
Mark a question as graded work and the tutor walks you through it instead of handing you the answer. In a checkpoint, asking for help is recorded, never penalised.
"Where did that even come from?"
The tutor lists the course texts it used, from openly licensed textbooks cited with their licence, or tells you it had none.
SourceWikibooks Calculus · CC BY-SA 4.0
24 seconds
Maya tells the tutor once how trig clicks for her. Three days later, in a new chat, it starts there.
For parents
What happens with your child's account, said plainly.
Pricing
$0
5 hours of study time every month, renewed.
US$19.99 / month
40 hours, about 50¢ an hour. Or US$11.99 a month, billed yearly.
US$29.99 / month
Or US$17.99 a month, billed yearly. Fair use: 120 hours a month.
Need more? Top up 1, 5 or 10 hours, from US$2.99.
Questions
Students 13 and up in Canada and the US: Ontario high school courses, SAT and IELTS prep, and university courses.
It's built not to be: mark work as graded and the tutor coaches instead of giving the answer. Your school's rules come first, so check with your teacher.
The tutor can be. Course questions are checked against the answer key, and anything unchecked, including notes made from a lecture or a video, is labelled as such.
Making notes from a recording or a video uses study time, like the tutor does. Each plan has a daily number of notes jobs; Free includes 12 a day.
Practice for IELTS Academic. Any band it gives is an unofficial estimate, and YSR Studies is not affiliated with IELTS.
English, French, Arabic and Chinese, for the app and the tutor.
Yes: a full export, or a course as an Anki deck or Markdown.
5 hours every month, free. No card needed.
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