Point your camera at a shelf, a cover or a barcode. Tsundoku reads the spines, catalogues every book and remembers which room and shelf it lives on.
See how it works ↓Three photos, three minutes. No typing titles one by one.
One photo of one shelf. Every spine it can see is read, and the books are found.
Confirm what it found, fix anything odd, and say which room and shelf they sit on.
Search your whole house, see what is unread, and know who borrowed what.
Every book carries its location, so "it's somewhere in the spare room" stops being an answer.
See the size of the pile honestly, and stop buying the book you already own twice.
Mark a book on loan when it leaves the house, and check the list before you buy a replacement.
Scan on your phone at the shelf, tidy up later on a big screen. One library, same everywhere.
Scan, review, shelve.




積ん読 is the Japanese word for buying books and letting them pile up unread. It is not a failing. It is a collection that got ahead of you.
This app does not nag you to read faster. It just makes sure you know exactly what is in the pile, and where.
It reads most spines in a well-lit photo of a single shelf. Anything it is unsure about is flagged for review before it joins your library, so nothing wrong gets saved silently.
No. Most people do a shelf at a time over a few evenings. Barcode scanning is there for new arrivals.
Yes. Export the whole library as a CSV from your account at any time.
They are used to identify the books and are not kept longer than the scan needs. Your library is yours.
Tsundoku is in private beta. The apps arrive in the stores at public launch.
New here? Get Tsundoku on the App Store or Google Play.