Find your books on the shelf โ€” instantly.

Point your camera at a shelf and Book Spotter highlights the titles you're hunting for, in real time. Perfect for bookstores, libraries, thrift stores, and estate sales.

Download on the App Store Get it on Google Play
Author Spotted Title Match Title + Author

See it on the shelf

Real scans from bookstores and thrift shops. Available on iPhone and Android.

Book Spotter on iPhone: a green FOUND banner for Treasure Island, with the matching spine boxed in green on a crowded shelf
Found. Title and author line up โ€” boxed in green the moment it enters the frame.
Book Spotter on iPhone: a yellow AUTHOR SPOTTED banner for Roald Dahl, listing James and the Giant Peach as the book still wanted
Author spotted. Collecting Roald Dahl? Every spine of his lights up, with the titles you're still after.
Book Spotter on Android: The Chronicles of Narnia found in green, plus a yellow banner noting C.S. Lewis was spotted while looking for Prince Caspian
Two leads at once. A Narnia match in green, and a nudge that C.S. Lewis is on this shelf too.
Book Spotter on Android: the Book List screen showing titles, an author-only search, and an Add a book button
Your Book List. Titles, authors, notes, and author-only searches โ€” synced between your phone and bookspotter.app.
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Spot a whole list at once

Add every book you're after and scan the shelf once โ€” matches are boxed as you pan across the spines.

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Color-coded confidence

Green when everything you're searching for lines up. Blue when the title matches but the author isn't printed on the spine. Yellow for a close read, or when an author you're hunting turns up.

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Spot the author, find the shelf

See an author you're collecting but not the title you want? Book Spotter flags them anyway and lists which of their books you're still after โ€” so you know exactly what to look for.

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Real book records

Track author, notes, and the condition you're after. Mark books purchased or keep them searching.

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Look up as you type

Check a title against a public book database to fill in the author and fix spelling before you hit the shelves.

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Scan from a photo

Already snapped a shelf? Run Book Spotter over a photo from your library to find your books in it.

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Works offline, on your device

Scanning needs no signal at all โ€” recognition and matching happen entirely on your phone, so it works in a basement bookshop or a rural thrift store. A connection is only needed to look up a title, back up your list, or manage a subscription.

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Private by design

Text recognition runs on your device โ€” Apple's built-in Vision on iPhone, Google's on-device ML Kit on Android. Your camera frames aren't uploaded or stored.

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Manage your list on a computer

Sign in to your book list to add and edit in bulk with a real keyboard โ€” and download or upload your whole list as a CSV.

Free to use

Search for up to 5 books at once, free โ€” always. Want a bigger active search list? Watch a short ad to unlock a book permanently, subscribe to Search Plus for a higher cap, or do both.