Stop buying books you already own.
Snap your shelves once. Check from any store. Shelf Scan reads spines and covers, so you can search your saved bookshelves anywhere. No cataloging. No subscription. Pay once.
Snap your shelves
Search from any store
No subscription
Private by design
How it works
Snap
Photograph your shelves once and save them to your Library.
Search
At any bookstore or thrift shop, search what you're considering.
Know
See instantly whether you already own it.
Your collection in your pocket, everywhere you shop.
Snap shelf photos at home and search them anywhere. Bookstore, thrift shop, garage sale, online listing — know in seconds whether you already own it.
- Save shelf photos
- Add notes
- Backup & restore
- Search your Library
Highlights matches as you search.
Real-time OCR scans shelf spines and covers, lighting up the exact items that match your query.
- Instant results
- Works offline
- On-screen highlights
- Save to your Library
Built for every shopper.
Books, DVDs, Blu-rays, video games, board games, or anything with readable text on a spine or cover.
Used bookstores
Walk in, check your saved shelves, buy only what's new to you.
Thrift shops & garage sales
Spot deals on titles you don't already own.
Online shopping
Cross-reference any listing against your home library.
Gift shopping
Check whether the recipient (or you) already owns it.
Private. Offline. On-device.
Shelf Scan works entirely on your device using on-device OCR. Your scans, searches, and saved shelf photos never leave your phone.
- No internet permission
- No data collection
- No accounts or sign-ins
- No ads or tracking
See Shelf Scan in action.
A quick tour of the Library, Live Mode, and how Shelf Scan handles a packed shelf.
What people are saying
"This is amazing!"
"Ok, that is the coolest thing ever!!! Thank you!"
"I have been using this the past week and it is so helpful!"
"Now if only you could help me find everything else I lose every day…"
Save money. Stop buying duplicates.
Get Shelf Scan on Google Play for $1.99. Pay once, save forever.