CLZ Books - library organizer

CLZ Books - library organizer

Just scan ISBN barcodes

2.6K ratings
487 reviews
#158 in top-grossing Book
🔍 Reference
📚 Books
Free
In-App Purchases

Details

  • Released
  • Updated
  • June 7, 2009
  • August 20, 2026

Features

CLZ Books - library organizer video #1 for iPhone
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CLZ Books - library organizer screenshot #11 for iPhone
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About

Easily catalog your book collection by scanning ISBN barcodes or searching by author and title. Automatically retrieve book details, values, and cover art. Organize your library with customizable views, multiple collections, and cloud syncing.

Scan ISBN barcodes for automatic data retrieval
Search by author and title
Automatic book details, values, and cover art
Edit all book fields and add personal notes
Create multiple collections
Customizable browsing, sorting, and grouping
Cloud backup and multi-device syncing
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What users say

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What's New in CLZ Books

11.0.4

August 20, 2026

Fixed: * Custom Fields: Fixed List/Fixed Button Bar: It wasn't possible to add more than 1 value

Subscription plans

CLZ Books (Pay Monthly)

Subscribe to the CLZ Books online services

$1.991 Month
7 Days trial
Price Updates
September 7, 2026$1.99
July 4, 2024$1.99
June 15, 2024$1.49
How to cancel CLZ Books subscription ⁉️

Charts

Top Grossing

📉 158-1

Book

This app dropped -1 position in Book chart.

Last updated on September 17, 2026.

User reviews

Best Library Catalog App

My wife and I are avid book readers, and we have accumulated over 8,000 books over the years. I wish we had discovered this sooner. We have been to many library book sales, and we came home and realized we already had a copy. Since we found CLZ, we’ve saved ourselves a lot of time and money by checking it to see if we already have what we’re looking at. Thank you so much
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Amazing App

Customer Support actually listens to the users and fix reported bugs. This is the best app to keep organized digital and physical books, easy to use, beautiful interface, fully customizable. I recommend it 100%, I have been using it for over two years and I wouldn’t change it for any other app.

LOVE THIS!

Have been hunting for a way to quickly and effectively catalog my home library and CLZ Books is the PERFECT app to do so. I was able to catalog over 250 books in under an hour and it helped me reacquaint myself with old treasures and keep track of what I do and do not have in my collection. I should’ve done this years ago. Thank you!
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First Impressions fantastic then I hit a lot of “not founds”

I found the speed at which one could add books was terrific. When I had a formatting error moving my Goodreads collection I simply pointed the camera at my screen where there were 200 barcodes. It just went ping, ping, ping and in a minute it identified most of the books. However quite a few of the books were not found and I came to the conclusion that the isbn database wasn’t as comprehensively full as it appeared. I also couldn’t understand why the “update from core” didn’t work to bring back the cover art without the barcode. It can find the books from title and author so why not provide a selection of covers. Early days but I’m going to pay the subscription because I’ve had $20 worth of fun from it. I just don’t understand why the developers can’t scrape data from the library of congress or the British library to get all the info of every book.
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Indispensable

I recently purchased the CLZ Book app and it’s fast becoming another CLZ favorite (I’ve used the Music and Movie apps for many, many years). Hundreds of books are now in a manageable data base with no more physically searching shelves and stacks to see what I have, making it easy to check that I’m not purchasing another copy of a title.
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Developer apps

User experience

🐞

Reported Bugs

2 issues

Crashes when removing books during sync

Bug

Issues with barcode scanning on newer devices

Bug

Requested Features

4 requests

Ability to track reading progress or notes

Feature

Option to export data in more formats

Feature

Improved search and filtering capabilities

Feature

Integration with other book-related apps or services

Feature

FAQ

What does CLZ Books do?

CLZ Books helps you easily catalog your entire book collection. You can add books by scanning ISBN barcodes or searching our online database by author and title. The app automatically retrieves book details, cover art, and even estimated values.

How do I add books to my collection?

You have two main ways to add books. You can scan ISBN barcodes using your device's camera or a USB scanner, or you can search our CLZ Core database by entering the author and title. Both methods are designed for high success rates in finding your books.

What are the costs associated with CLZ Books?

CLZ Books operates on a paid subscription model. It costs US $1.99 per month or US $19.99 per year. A free 7-day trial is available, allowing you to explore all the app's features and online services before committing to a subscription.

Can I use CLZ Books on multiple devices?

Yes, CLZ Books supports syncing your book library across multiple devices. By using CLZ Cloud, you can ensure your collection is always backed up online and accessible from any device you use, keeping your catalog consistent.

What kind of information can I store about my books?

Beyond the automatically retrieved details like title, author, publisher, and plot, you can edit all fields and add personal information. This includes details like the book's condition, its location in your home, purchase date and price, store where it was bought, and personal notes.