Book Tracker Spine: Own & Lend

Scan a barcode and the book stands up on your shelf. Ask if you already own it and get an answer with no signal. Lend a book and watch it leave a gap on the shelf.

You are standing in a bookshop holding a book you might already own. Spine answers that in one scan, with no signal needed.

YOUR SHELVES, AS SHELVES Other apps give you a grid of cover thumbnails. Spine gives you spines — standing side by side in their own cloth colours, each one as wide as the book is thick, grouped by the room they actually live in. Your library looks like your library.

SCAN, AND IT STANDS UP Point the camera at a barcode and the book slides into place on the shelf, its neighbours parting to make room. Ten seconds a book. Or type it in — that path is always there and always equal.

DO I ALREADY HAVE THIS? The question that made you download this. One scan, one answer, and it works with no connection because your shelves live on your phone, not on somebody's server.

WHO HAS MY COPY? Lend a book and it leaves a gap on the shelf — a visible hole where it should be standing, with the borrower's name and the number of days. Seventy-four days is the sort of number that starts a conversation.

FOR PEOPLE WHO OWN BOOKS No feed, no reviews, no reading challenge, no friends to add. Spine is a catalogue of what is on your shelves and where it went. That is all it is, and it is very good at it.

YOUR LIBRARY IS YOURS Export everything to CSV or PDF at any time, free, with or without the full version. No account, no sync, nothing uploaded — the only thing that ever leaves your phone is a barcode number, when you ask for a title.

ONE-TIME. NO SUBSCRIPTION. Your first 100 books, four shelves, scanning and export are free forever. One purchase unlocks unlimited books and shelves, lending, series and editions, and search across every room.

Adding a book looks up its details online. Everything else works offline.

Terms of Use (EULA): https://arytec.ch/spine/terms Privacy Policy: https://arytec.ch/spine/privacy