Catalog your books on iOS or Android
Download a free trial version:

Catalog your books on your Android phone or tablet

  • Easily add books to your database:
    • scan ISBN barcodes with your device camera
    • or search by author and title.
  • Auto-download author, title, plot, cover art & more.
  • Use the free CLZ Cloud for backups and syncing.

Download a free trial version

or just open the Play Store on your device
and search for "CLZ BOOKS"

The free trial is limited to 100 books.
Unlock to unlimited for US $15 (In-App purchase).

Browse your book list in various layouts

  • Use the List View with titles and main info
  • or browse cover images in the Cover Wall view
  • Check full details in your preferred skin
  • Optimized layouts for Android Tablet, Phablet and Android Phone

Pick the look of your app: CLZ Books comes with a Dark Skin and a Light Skin

  • Choose whichever you like best
  • Dark Skin with Clear Dark template:
  • Or choose a lighter style with a brighter template
  • Light Skin with Clear Light template:

Sort and search your book database

  • Scroll through in your books in one "flat list"...
  • or group them into folders, e.g. by Author or Genre
  • Order your list by Author, Title or Year
  • Use the Quick Search box to find a specific book

Easily add books to your database by ISBN or title

  • Add books by scanning ISBNs:
    • Scan book ISBNs with your device camera...
    • and have your book instantly recognised
  • Or search our online book database by author and title:
    • Enter the author and/or title to search...
    • then pick the correct book from the results

Automatically retrieve full book data and images

  • Author, Title, ISBN, Publisher, Publication Date
  • Genre and Subjects, Number of pages
  • Format, Plots summary, LoC Classification
  • Dewey and Cover images

Customize your book entries using the Edit screen

  • Modify book properties (like title, format, etc..)
  • Create your own genre and tag classification
  • Track your "Read It" status and your wish list
  • Enter purchase info, your rating and notes

Use the free CLZ Cloud system for data backups, syncing and sharing

  • Backup your collection data in the free CLZ Cloud
  • Sync data between devices, e.g. Android Phone and Android Tablet
  • Browse your list online on the free CLZ Cloud site
  • Share your public cloud link with friends & family

Transfer data to and from the Book Collector desktop software

  • Already own the Book Collector software for PC or Mac?
  • Then seamlessly sync your data to this CLZ Books app for Android
  • Add books and edit entries on your mobile app
  • And sync the changes back to your desktop database


CLZ Books
January 18, 2017
“Just what i was looking for.” — Megan Lockhart
CLZ Books
January 16, 2017
“Best tech service and very friendly help.” — Gary Gluck
Another awesome module added to our holdings
January 16, 2017
“We currently use the music, comic and now the book module. Each being splendid and shows us why we will eventually add the movie one as well. They are better then numerous other options we have tried over the years. Take the time set them up and before you know it you will just be maintaining and updating as needed. Collectorz rocks and I will happily support it in the future as well.” — Elisa Hoelscher
Just the best
January 14, 2017
“Simple yet has everything one would look for....” — Krishnakumar G
Greatest library software
January 13, 2017
“I have a vast library and the thought of getting software to automate it had me horrified. This software was well priced and the customer service has been tremendous. They have gone the extra mile to help a non-computer guy like me to make sure I was able to get up and running. When I have had trouble because of my ineptitude the customer service has gotten back up and running again. I will never stop using this software.” — Ron Clites
Nulla da eccepire
January 13, 2017
“Ottimo prodotto: collegato alla versione per pc รจ anche meglio.” — Marco Italia
I've been using this for a long time
January 13, 2017
“New to the app, but it's just as awesome as the software I use on my computers. I'm never disappointed!” — Stephanie Dean
Great App
January 12, 2017
“Best app if you have a lot of books. Well worth the money.” — Paul Everingham
January 11, 2017
“I freaking adore this app! Most books are super easy to look up! If not, just manually enter!” — Maria Carlton
January 11, 2017
“A spectacular piece of software that's updated regularly and with great awareness of user needs. Amazing developer, superb app!” — Shawn Nacol

Hear from more delighted customers