English
Features
Everything starts with the page.
Kastoro reads along with you. Here's what that looks like, one page at a time.
01Ask the page
Answers in context, not in general.
Circle a paragraph, a formula or a note in the margin, and ask. Kastoro answers from the page you're on, not from the whole internet.
- Reads the book, your notes and the part you circled
- Every answer ends with a next step, one tap away
- What's worth keeping becomes a card, in the same document
- Nothing goes to a model until you ask
02Talk to a PDF
Hold to talk. It answers out loud.
Open any PDF page and speak. Kastoro reads the page with you and answers out loud, so your eyes can stay on the text.
- Works on any PDF page
- Answers out loud, in context
- Nothing is sent until you press to talk
- Type instead, whenever you prefer
03Notes
A notebook that stays a notebook.
Type with a real editor in your browser today. Write with a pencil on iPad very soon. Same page in both places.
- Typed notes with headings, lists and images
- PDFs to read, circle and ask about
- On iPad: a pen that feels like paper
- On iPad: your handwriting, searchable
04Study
Remember what you read.
Turn your pages into cards and quizzes. Kastoro brings each card back right before you'd forget it.
- Cards made from your own pages
- Reviews scheduled for the right day
- Quizzes that test what you actually read
- Quick review sessions from the keyboard
05Listen
A page that reads to you.
Notes, PDFs and answers, out loud. Give your eyes a break and keep going.
- Your notes, read out loud
- PDF pages, read out loud
- Answers you can listen to
Yours
Your notes stay yours.
on your device first. always.Works offline
Your documents live on your device. The network is a bonus.
Leaves with you
Export anything, in a format other apps can open.
Asks before it sends
Nothing goes to a model until you ask.
Ask your notes something.
In your browser now. On iPad very soon.