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

Keep track of your book collection on your 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 your free trial version:

or just open the App Store / 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).

Available for iOS and Android

Choose iOS or Android below for more information and lots of screen shots:

CLZ Books for iOS

CLZ Books for Android

Here's what customers have said about CLZ Books

Great app
25 July, 2016
“Keep it so i always have a list of books ive read and don't pick up the wrong book! It s great for that.” — The Boobala
This is a "must have"!
23 July, 2016
“I work in an old fashioned book store. A customer told me about this app so I had to check it out. There's a computer version & an iPhone/pad version. I'm not near a computer often but always have my iPhone w/me. I was able to add older books. If a picture of the cover doesn't load...I just took a picture w/my phone & edited into the book info. The customer service was wonderful. I didn't realize there was the computer version & a phone version. They refunded me so I could purchase the app. I travel a bit. Now I will never be at a shop w/a book on my hand wondering if I already had it. And if I ever had a fire, I would use this app for insurance purposes. I've already looked up a books in my personal collection for customers at the store. is good!” — Hatrick81
Love it!
23 July, 2016
“Have been using it for a couple years now.” — Crystal Gillis
23 July, 2016
“Really helps me with my hard core crime collections.” — Steve Lowe
Awesome app
22 July, 2016
“Perfect tool for me to keep up with my ever growing collection and they are constantly improving it.” — Aisle B Bach
All my friends are envious!
21 July, 2016
“Easy cataloguing and multiple devices synced.” — James Wise
Enfin trouvé
21 July, 2016
“Plus je l'utilise et plus que je l'adore. En plus il est facile à utiliser.” — Jocelyne Campeau
Great app
20 July, 2016
“An excellent log of all the books in your collection, and easy to search. It's nice that you can add books too through the app now.” — Croix Snapp
20 July, 2016
“I loveeee it.” — Ichell Sanchez
20 July, 2016
“Very useful app to keep track of my large book collection. Different publications of the same book can be chosen which allows for the same book to be entered many times, brilliant if you are collecting different versions of the same book. Easy to add books and sort through anyone's collection.” — Paul Scrafton

Hear from more delighted customers