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 higher database limits using In-App purchases.

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

Blown away
25 May, 2016
“I've just started using this app and I am blown away! It is just what I have been looking for.” — Hank Becker
To the making of many books
23 May, 2016
“This app is great. I've started cataloging my books. Pretty easy scanning the ISBN. They also have one for your music. Someday I may get to my CDs.” — Kickin' heels
Excellent app
22 May, 2016
“Great way to keep track of my 4,000+ books!” — Juan Jimenez
So easy so good
22 May, 2016
“Only just started using it but it's so easy and intuitive, I was looking to catalogue my extensive book collection manually on a spreadsheet, but this finds your book via barcode and more importantly by author title, then displays them beautifully in list or carousel format. Highly recommended and may be useful for insurance purposes.” — Cevpip73
Great App
21 May, 2016
“Been using for years, regularly updated and helps me with my large book collection (over 2000)” — Michael Pearson
19 May, 2016
“It is easy to use and fun to see all my books in one place!” — Iheartnh
19 May, 2016
“The CLZ Books app (and Book Collector for PC) have been invaluable in helping me manage my library.” — Adria Colletti
Awesome Customer Support
18 May, 2016
“Brilliant App. World-Class Support. Awesome.” — Cpt Amazing AU
Book nerds favorite app!!
17 May, 2016
“I am a college professor with a decent book collection. I have never really left a review this extensive before but I had to! I LOVE THIS APP!!! I haven't used Mac version so I am bit of a novice. I had been searching and searching for a book database app to figure out what books I have. It's easy to use, just scan and upload!!” — SoCame DaGoddess
Wonderful! Catalogue your books
17 May, 2016
“This and its desktop counterparts go from strength to strength. They interact seamlessly via the cloud and hugely facilitate the making and keeping of a book catalogue. Since you can carry the catalogue in your pocket it will pay for itself in prevented duplicate purchases. There is room for improvement; I would happily pay a modest amount extra if Dewey numbers were routinely included in the online catalogue; at present the majority of my non-fiction books have them, but many don't. The subject indexing field is chaotic and anarchic. It seems that users can dream up their own format for each subject, with the result that one subject may have several labels differing only in punctuation or some other trivial respect. There must be a better way. The handling of diacritical marks is deficient. The book price fields give no indication of the currency: this makes the field essentially useless if one buys in several currencies. A way of printing labels including spine labels would be a useful addition. However the app is continually being improved over the years. Support is excellent, with prompt and intelligent responses. It's by far the best solution I know of for a private collection or small library.” — Leighton008

Hear from more delighted customers