Reached #5 · UK & Ireland App Store Books chart

Spines — Find hidden gems on any thrift store shelf

Stop leaving the good stuff behind.

Spines is the book discovery companion for thrift store lovers. Photo a chaotic shelf and instantly see which books are worth grabbing — tailored to your taste.

Works in thrift stores, libraries, and home bookshelves in the US, UK, and beyond.

Get Spines free Free · 3 scans/month · 14-day trial
Scanning a bookshelf with the Spines app
Hidden gem found
4.2 stars · Pulitzer Winner
Recognized by
#5

Reached #5 on the App Store Books chart — UK & Ireland

UK StartUp Awards 2026 Wales Winner

Winner — UK StartUp Awards 2026 Wales

Wales Business Awards 2026 Finalist

Finalist — Wales Business Awards 2026

As featured in Nation.Cymru

As featured in Nation.Cymru

See it in action

One photo. 190 books identified.

A real scan of a real thrift store shelf. In seconds, Spines read every spine and spotted the prize winners hiding in plain sight.

Thrift store bookshelf with three standout books highlighted by Spines
190 books identified in seconds

Real scan, real shelf — spotted at a thrift store

3 gems on this shelf

To Kill a Mockingbird cover

To Kill a Mockingbird

Harper Lee

Pulitzer Winner NYT Bestseller
The Curious Incident of the Dog in the Night-Time cover

The Curious Incident of the Dog in the Night-Time

Mark Haddon

Costa Winner Booker Shortlist
The Hunger Games cover

The Hunger Games

Suzanne Collins

NYT Bestseller · 417 weeks

…plus 187 more, ranked for your taste.

How it works

Point. Scan. Discover.

No typing. No searching. No googling every title.
Just point, shoot, and discover your next great read in seconds.

Step 1

Point

Point your camera at any bookshelf — thrift stores, libraries, your friend's living room. Messy shelves are no problem.

Step 2

Scan

AI reads the spines, matches titles to real book data, and pulls ratings, reviews, and genre information in seconds.

Step 3

Discover

Get personalized For You picks based on your reading taste. Spot Pulitzer, Booker, NBA, and Women's Prize winners, NYT Bestsellers, highly rated finds, and hidden treasures instantly.

Signals

What Spines looks for

Spines cross‑references every book on the shelf against:

  • Literary awards (Pulitzer, Booker, National Book Award, Women's Prize)
  • Bestseller lists (New York Times)
  • Reader ratings from around the world
  • Your personal taste (favorite genres, authors, publishers)

All in a few seconds, from a single photo.

Literary awards

Instantly spot award-winning literature hiding on the shelf.

Pulitzer Prize Booker Prize National Book Award Women's Prize Winners & finalists

Bestseller lists

See which books made the lists — and how long they stayed.

NYT Bestseller Rank & weeks on list

Reader ratings

Aggregated ratings from readers worldwide, so you can tell the 4.5-star gems from the duds at a glance.

Genre matching

AI understands the meaning behind your taste — not just keyword matches, but semantic understanding of what you actually enjoy reading.

Author & publisher affinity

Spines learns your favorite authors and publishers — both from what you tell it and from patterns in the books you grab.

Gets smarter over time. The more you scan and grab, the better your recommendations become.
Nearby New · rolling out across the UK

See what other book hunters are finding

When someone scans a shelf at a thrift store and chooses to share it, that shelf becomes a sighting. Nearby shows you which shops have fresh books on their shelves — before you set off.

A live map of book activity

Thrift stores near you, with a pulse on the ones where books have been spotted recently. Free for everyone.

The sightings feed

Premium members browse recently sighted shelves — covers and all — and see exactly which shop they were spotted in.

Wishlist alerts

Hunting a specific book? Get a push the moment it's sighted on a shelf near you. Instant for Premium; free members get a weekly teaser.

Private by default. Sharing is opt-in per scan, always anonymous, and only ever tied to the shop — never to you.

Smart recognition

AI reads book spines even on crowded, messy shelves with angled or partially hidden titles.

Scan history

Revisit any shelf you've scanned. Perfect for when you want to go back and pick up that book you almost grabbed.

“An indispensable app in my library… This app has enabled me to source a number of titles on my personal wishlist which I'd initially failed to spot on the shelf! A brilliant idea and super easy to use.”
“Outstanding” — App Store review

Spines Premium

Unlock the full experience for serious book hunters who want every advantage.

  • Unlimited shelf scans

    Scan as many shelves as you want, every day

  • Full scan history

    Revisit any shelf, any time

  • Award & bestseller signals

    Pulitzer, Booker, NBA, Women's Prize, and NYT Bestseller badges at a glance

  • Book wishlist

    Track books you are hunting for and surface matches in scan results

  • Import books

    Bulk-add books you love via shelf scan or Goodreads or StoryGraph export to sharpen your recommendations

  • Nearby sightings feed & instant wishlist alerts

    Browse recently sighted shelves at charity shops near you and get pushed the moment a wishlist book is spotted (rolling out across the UK)

Monthly
$6.99
per month
Best value
Annual
$49.99
per year · just $4.17/month
14-day free trial on annual

Cancel anytime · price may vary by country

Free users get 3 scans per month. Start with a 14-day free trial on annual. Subscriptions are managed through the App Store or Google Play.

Why Spines

Why use Spines?

Save time

No more standing in front of a shelf googling every title.

Avoid duds

See ratings and awards at a glance so you don't waste money on books you won't finish.

Find hidden gems

Spot overlooked prize‑winners and highly rated backlist titles hiding between bestsellers.

Build your taste

The more you scan and grab, the more Spines understands what you love.

FAQ

Common questions

How does Spines identify books?
Spines uses AI vision to read the text on book spines in your photo. It then matches those titles against real book databases to pull in ratings, genre data, and author info. Each book is cross-referenced against literary award databases (Pulitzer Prize, Booker Prize, National Book Award, Women's Prize) and bestseller lists (New York Times) to surface hidden gems. It works even on crowded, messy shelves.
What kinds of shelves work best?
Any shelf with visible book spines. Thrift stores, libraries, bookstores, and home bookshelves all work great. The more spine text visible in the photo, the better the results.
Is Spines free?

Yes. Spines is free to download and use with up to 3 scans per month.

If you hunt shelves regularly, Spines Premium gives you everything:

  • Unlimited scans
  • Full scan history so you can revisit past shelves
  • Book wishlist with wishlist matches surfaced in scan results
  • Import books you love via shelf scan, Goodreads, or StoryGraph to sharpen recommendations
  • Award & bestseller signals (Pulitzer, Booker, NBA, Women's Prize, NYT)
  • Smarter “For You” recommendations that learn from what you grab and pass

Spines Premium is $6.99/month or $49.99/year. The annual plan includes a 14-day free trial. Price may vary by country.

What does "For You" mean?

For You highlights books on the shelf that match your personal reading taste. Spines looks at:

  • Your favorite genres, authors, and publishers
  • Patterns in the books you mark as Grab or Pass
  • Semantic similarities between books (not just keyword matches)

The more you scan and grab, the smarter it gets. It's like having a well‑read friend in your pocket who knows what you actually enjoy.

What is Nearby?
Nearby is a map and feed of book sightings at thrift stores, powered by scans other book hunters have chosen to share. Everyone sees the venue map with recent-activity pulses; Premium members also get the full sightings feed with covers and instant wishlist alerts. Sharing is opt-in per scan and always anonymous — sightings are tied to the shop, never to a person. Nearby is currently rolling out across the UK.
How do I cancel my subscription?
Subscriptions are managed through the App Store (Settings → Apple ID → Subscriptions) or Google Play (Play Store → Subscriptions). Cancel anytime; you'll keep Premium until the end of your billing period.

Ready to find your next great read?

Download Spines for free and start scanning shelves today.

Free with 3 scans/month · 14-day free trial on annual

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