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

February 15, 2017
“Been using it for years. My book buddy and I can check which books we have in order to avoid duplicates. Also use it at the bookstore and library to see if I have it or read it.” — Lucy Looney
So much better
February 12, 2017
“I use to use BookCat - this is better since I can sync across many devices.” — Allyson Luders
Nützliches Helferlein
February 12, 2017
“Man kann recht einfach Ordung in seine Büchersammlung bringen. Die mobile Lösung kann zudem das kaufen bereits vorhandener Bücher verhindern.” — Ch-f
Great app
February 10, 2017
“Beats doing dewey decimal by hand.” — Ted Swanson
Excelente app!
February 8, 2017
“Si tienes muchos libros y necesitas catalogarlos, esta es la aplicación que necesitas. Lo mejor es la posibilidad de utilizarla en varias plataformas manteniendo todo sincronizado.” — MalditoAlias
Great App!
February 7, 2017
“Easy to use. I was able to upload a few hundred books very quickly by scanning.” — Sniped again
Too much like fun!
February 7, 2017
“Once I started it is hard to stop.” — Bookman Bob
February 5, 2017
“Does what it says on the Tin!” — Sujoy Biswas
Where have you been all my library?
February 5, 2017
“Fantastic app! More than just a "you enter it all yourself," it references a database and enters most of the information for you. Less than ten books entered and only two were not found. Both have ISBN numbers but seem to be self-published, so not expecting those to be found. Even $15 to get full use of the app is definitely worth the price if you have a large collection. Highly recommended!” — The Kitchen Witch
February 4, 2017
“Never again will I buy duplicate books!” — Afpafpafpafp

Hear from more delighted customers