You read forty books last year. Name three ideas from them.
Kontoro keeps what you highlight, and brings it back before you forget. Your library becomes a character.
Free to start · no card · your files stay private
It isn’t that you didn’t read them.
Nothing was built to keep them.
Your highlights are stranded in Kindle. Your notes are in three apps. The shelf grows and the ideas don’t. Reading is the highest-leverage habit there is, and almost none of it compounds.
Four steps, and the fourth is the one nobody does.
Collect
Search a title and put it on your shelf. Physical, digital, borrowed — one shelf for everything you own.Mark
Keep the lines that matter, with the page they came from.Distil
Write the idea in your own words. A mental model outlives the book that gave it to you.Meet it again
We bring it back just before it goes. Two minutes, no test, no score.Five things you already do to a book. One record.
Not five features. One kind of thing with five shapes, so a fold can carry a thought and a passage can become a quote without becoming a different record.Bookmark
Where you left off. One per read, and it moves rather than multiplying.Dog-ear
A page worth coming back to. One fold, no form, nothing to fill in.Sticky
A tab on the edge, for a concept or a section you will want to find again.Highlight
A passage that matters. Decide later whether it is a quote worth attributing.Note
What you thought, in your own words — a margin note, kept with the book.It is not a quiz.
Nothing is hidden and there is no right answer. We show you the line you kept — reading it again is most of the benefit — and you tell us one thing: still with me, or gone. What got away comes back sooner. What stuck waits longer.
No streaks. No daily guilt. You can retire an idea whenever you are done with it.
“Why, sometimes I’ve believed as many as six impossible things before breakfast.”
Your reading becomes a character.
Not a score we invented. Every figure is your own answer, counted — and a subject nothing has come round for says so rather than showing you a zero.
- Stoicism88% · still yours4 books · 9 models · 121 highlights · kept 34 of the times you met them
- Evolutionary biology71% · holding3 books · 6 models · 88 highlights · kept 19 of the times you met them · 2 due now
- Anthropology31% · slipping2 books · 4 models · 64 highlights · kept 6 of the times you met them · 9 due now
- Poetrynot met yet6 books · 0 models · 12 highlights · kept 0 of the times you met them
Your files, your locker
Upload the PDFs and EPUBs you already own. They are private to you — never shared between readers, never redistributed. That is a legal boundary, not a setting. Reading them here comes next.Paper counts too
Point your phone at a page and the text will come off it onto the right book, without the photograph ever leaving your device. Most tools quietly give up on paper readers; half a shelf is not a library.Free to keep. Pay to store.
Your library, your marks and your ideas are free at every tier. The paywall is storage, never your own words.
Reader
Freecatalogue everything you ownScholar
$9 · monththe locker, and a camera you can trustKontoro is early. Today it holds your library, your shelves, your own uploaded files, and every kind of mark on them. Mental models, spaced recall, scanning and reading routes are being built in the open — the roadmap is public, and nothing is charged for before it works.
Start with one book.
The one on your desk right now. Add it, keep a line from it, and see what a year of reading could have looked like.
Start your library