Book database app for iPhone and iPad » CLZ Books

or just search the App Store for "CLZ Books"

( looking for the Android edition? )

Catalog your book collection and your wish list

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Browse, sort and search your book collection

Browse, sort and search your book collection

Automatically add books to your book database

No manual data entry needed. Either: CLZ Books will automatically download full book details, including Publisher, Publication Date,
Genres, Plot summaries and cover art.

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Automatically add books to your database

Add personal information in the Edit screen

Organize and manage detailed personal information about your books
like Purchase Date, Store, Condition, Rating, Notes and Tags.

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Catalog your book collection & wish list

Sync your data with the Book Collector Connect cloud storage

Book Collector Connect is a web-based book organizing and cloud storage system for book data.
If you own a Connect software subscription (US $19.95 per year), you can sync your data with the cloud,
for online backup purposes and for viewing and managing your book collection online.

Do you own the Books Collector desktop software for Windows or Mac OS X?
Then you can use the Connect syncing to transfer your data back and forth
between the CLZ Books app and your Book Collector software.

More information and screen shots »

Sync your data with your Book Collector software (Windows, Mac or Connect)

Here's what customers have said about CLZ Books:

Werkt goed en snel

"Met de geïntegreerde barcode scan heb je alle nieuwere boeken snel ingevoerd. Alle boeken zonder barcode worden ook snel gevonden via handmatige invoer. Met name de cloud synchronisatie functie is handig voor als je meerdere devices/gebruikers in huis hebt. Cloud synchronisatie werkt perfect. Functionaliteit is meer dan voldoende en ik kan ook zonder de desktop applicatie."

May 07, 2014


"Have used the desktop app for years. This is the perfect companion app."

Jane Doe
April 27, 2014

A must have!

"A must have for true book collectors! I have the comic and music apps also."

Michele Briseno
April 11, 2014

Works as it should

"I'm excited to see what the newer versions bring .. also running with older book collector versions, so you do not always acquire the latest version ;-)"

April 10, 2014

The greatest

"This is the greatest book collection software and app that is out there!! The price is right and it works very well with my phone and tablet. I can take my collection with me everywhere that I go. Try it!!!"

Robert Foster
March 16, 2014

Great book lover app

"Great app! Scanned perfectly 12 books of 12 so far. I hope you'll add more options in future, like page number bookmark, book reading status bar, etc."

March 07, 2014


"Wonderful App! Just used it for a day; loving it!"

January 28, 2014

Best mobile catalogue

"I'm a big fan of clz apps, but the new versions are just superb. I brought the PC version as a spur of the moment choice. But now with the ability to link via mobile, I'm in my element. The recent updates and better screen layout on the iPad have just made the best better!!"

Pepe 7338
January 23, 2014


"As a preacher this app is great for keeping track of which books are in my library. I can keep track of every feature imaginable and have no complaints other than the price but it is a great product and well worth it!"

January 21, 2014

CLZ Books

"The mobile app accesory to Collectorz excellent book organizing database system. Tracks your Ebooks, too. Collectorz offers a complete suite of custom databases to help you organize your life. They are constantly improving their product and offer customer service and support that many other companies can only dream of. You may be able to find cheaper or even free aps that claim to do much of what Collectorz offers, but you won't find better value anywhere."

Brian J Munro
January 15, 2014

Great app

"This is a great app for tracking books owned and read and with the desktop version you have incredible database editing capabilities. I've tried a number of less expensive apps but none approach this one. User manuals are comprehensive and when I messed up my account by using two different email addresses, technical support fixed the problem in less than a day."

December 04, 2013


"This thing started out as a just very useful (and fun) tool and they refused to stop improving it. Combined with their SUPERB customer support, this app is every bibliophile's dream come true! I also own their desktop software and subscribe to their online database hosting. No complaints there, either."

Ross Dunn
August 15, 2013

Clz Books

"Excellent complément au logiciel, l'éditeur devrait ajouter la gestion des prêts."

August 09, 2013

A Great Program

"This book app is worth every cent (especially if it can prevent you from buying duplicates!) and with the new update has become increasingly user friendly. The design is very laid back and easy to use. Definantly the best book cataloguing app out their. One feature I would like seeing however is database totals so I can view the worth of my collection."

July 11, 2013

Great App

"Great for tracking the thousands of books I have."

May 14, 2013

Molto utile

"Dalla versione 2 fa un buon lavoro, permettendo di inserire libri dall'iPhone (leggendo il codice a barre o a mano), con buona parte dei dati contemplati dal programma per computer. La sincronizzazione è buona ma non perfetta (per esempio la versione per iOS sembra non capire alcuni segni diacritici). Nel complesso, molto utile."

March 30, 2013

Collectorz Book Collector

"Excellent software, I have been using it for almost 10 years. Support for the product is also excellent and timing of replies to support requests are received in a timely manner, within 24 hours of it being sent. I have even received a reply within 2 hours, depending on the time differences between Australia and The Netherlands.
I strongly recommend this product and the other Collectorz products to anyone needing a way of cataloging their collections, whether it is books, music or movies as it is in my case."

Anne from Oz
March 16, 2013

Great app

"This is a great app for my book collection.
I love that you can sort it in so many ways including by location. I have several shelves all over the house and I can easily see where a book is just by sorting them in the app.
Even better, if you loan a book to someone, just add them as a location and you can keep track of where it went."

February 25, 2013

An exquisite app

"This is a great! The best book indexing app out there by far. It is defiantly worth the $10. But just because it's the best doesn't mean it can't be better. As stated in a previous review, I think the app would be much more convenient if more of the fields provided on the computer version were accessible such as 'credits' or 'printing'.
Also, I think being able to add additional photos of the book would be helpful, especially when trying to determine if my copy is better than one I'm considering to buy. But, otherwise, defiantly worth the expenditure!
And, in case you're wondering, the computer program is also worth looking into too!"

February 24, 2013


"This app is perfect for keeping track of an ever expanding book collection! I would definitely recommend this to anyone looking at library based apps.
The graphics, and choice of book cover displays, are exceptional. This app has been well thought out. Added features such as recording price of the books also helps me keep track of my expenditure. Brilliant!
If I could find any way to improve this app, I would include an option or link to a website that gives a full list of all books written by your selected author. This would really complete this app! Well Done all the same though"

February 22, 2013

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