01 · Study
Learn it once.
Detailed notes, revision bullets and glossary — then flashcards on a spaced-repetition schedule and quizzes that find your weak spots.

Flashcards · Quizzes · FSRS reviews
Record a lecture in class, or drop in a YouTube link, PDF, slides or a whiteboard photo. Get detailed notes, flashcards, quizzes and every deadline mentioned — and an assistant that knows every word.

Every source becomes one clean, timestamped transcript or page-by-page text. Then the right outputs are generated for what it actually is.
01 · Study
Detailed notes, revision bullets and glossary — then flashcards on a spaced-repetition schedule and quizzes that find your weak spots.

Flashcards · Quizzes · FSRS reviews
02 · Record
Hit record in class and leave the notes to us: everything the lecturer taught, in order, plus every homework, reading and exam date they mentioned.

Class recordings · Detailed notes · Deadlines
03 · Ask
Every item comes with an assistant that answers with timestamps and page numbers — a tutor for lectures, a research assistant for papers.

Cited answers · Any language
A lecture needs flashcards and deadlines. A podcast needs chapters. Pick a type — or let us detect it — and get outputs that fit. Add or remove any output, any time.
Click a timestamp to jump the player. Flip a card. Tick off a deadline. Ask the assistant. Try it — this one's live.
SN2 is one step: the nucleophile comes in from the back as the bromide leaves.
So if the carbocation is flat, the nucleophile can attack from either side?
Nucleophilic substitution swaps a leaving group for a nucleophile. SN2 does it in one step; SN1 forms a carbocation first.
Backside attack, so the stereocentre inverts. Rate = k[substrate][Nu⁻]. Fastest at methyl and primary carbons.
The leaving group goes, then the nucleophile hits a flat carbocation from either face: a racemic mix. Rate = k[substrate].
Before · after
When is the essay due??
Said on the way out. Again.
Rewatching at 2×
Lecture 7, for the third time.
What did she say at 23:14?
Scrubbing a 90-min class recording…
47 open tabs
Papers you'll 'read later'.
Whiteboard wiped
The photo is blurry.
Exam on Friday
No flashcards. No summary.
Every note, card and task links back to the timestamp or page it came from. Click to jump.
Uploads, recordings and documents are yours alone. Turn on one setting and originals are deleted once your notes are made.
Ask follow-ups. The assistant cites exact moments and pages, and never makes up facts or dates.
Source in Hindi, notes in English — or any mix. Output language is a toggle, not a workaround.
The primary output streams in first, the rest follow. Captions-first for YouTube keeps it fast.
Record on your phone, review on your laptop. Flashcards and tasks work offline.
Different days. Different sources. The same problem: too much to remember.

Lecture hall · semester 3
The student
Four lectures a day, exams every month.

Evening class · after work
The working student
Phone on the desk, recording every class.

Library · 47 open tabs
The researcher
Papers, interviews and talks — all at once.
Priced in credits — a minute of audio or a page each — so you only pay for what you actually feed it.
For a couple of courses a term.
7 days free, then billed monthly. Cancel anytime.
For a full semester of lectures.
7 days free, then billed monthly. Cancel anytime.
For exam season, research and heavy weeks.
7 days free, then billed monthly. Cancel anytime.
Card required for the trial; you’re not charged until day 8. Billed in USD through Dodo Payments.
A little clarity before you start. Still stuck? Write to us.
YouTube links, audio (mp3, m4a, wav…) and video (mp4, mov…) up to 2 GB, in-app recordings of your classes, PDFs with a text layer, Word and PowerPoint files, photos of whiteboards or handwritten notes (PNG, JPEG or WebP), web articles and pasted text. Scanned PDFs and HEIC photos aren’t supported yet: upload a photo of each page, or export HEIC as JPEG.
Your first output usually lands within a couple of minutes; the rest stream in right after. Captioned YouTube videos are the fastest.
Yes. Transcription handles most major languages, and you can pick a different output language — Hindi lecture, English notes.
Try any plan free for 7 days. Cancel before it ends and you won’t be charged.