Keep track of your book collection and wish list.
Just scan ISBN barcodes with your camera!

Note: This free download is limited to 100 books.
Unlock the full unlimited app for US $15 (in-app purchase).

* Easily keep track of all your books.
* Just scan their ISBN barcodes with your camera, or search by author and title.
* Auto-download full details for books from our Core online book database:
-- Author, Title, nr of pages, genres, subjects, etc...
-- Publication information, plot descriptions and cover images
* Edit book entries to add personal details, like notes, rating, purchase info, etc.

Optional: Sign-up for a free CLZ Account to:
* Use the CLZ Books app on multiple devices without buying it again
* Sync your book data between these devices (e.g. iPhone and iPad)
* View and share your book list online, with the CLZ Cloud viewer site
* Always have an online backup of your collection data in the CLZ Cloud
* Synch data to/from the Book Collector desktop software (separate purchase)

* Free to download. Unlock the Full App for US $15 *

Download CLZ Books for free now and try it for yourself!
The free download is limited to 100 books.

Unlock the Full App for US $15 (no database limits).
NOTE: this is a one-time purchase, not a monthly or yearly fee!

* Questions or concerns? Come talk with us! *

We are here to help. Either to answer your questions or to respond to your feedback / concerns. Just contact us using the little "?" button inside the app (top right).

That way, we can have a conversation, answer your questions, solve your problems, fix the bugs you found, etc... We love talking to our users, as it helps us improve the apps :-)

* Other iOS apps by *

Do you also collect movies, music, comics or games? Then check out our other iOS apps, just search the App Store for "CLZ".

What’s New

Version 4.14.2

* New:
- The resizable panels in the add screen now have the same design as the ones in the main screen.

* Fixed:
- iPad: Wrong initial panel layout in the main screen when the app is started in landscape mode.

Ratings and Reviews

4.8 out of 5
428 Ratings
428 Ratings
@Sigil ,

The app works.

The app itself is great. I purchased it and the comic book app many years ago. I did not use them, because I went with Mac based solutions Delicious and The Librarian. That said, this new version does not recognize my purchase. However, the Comic Book app did recognize my previous purchase. I want to purchase the Movie and Game apps. Unfortunately, I won't be purchasing them until this is resolved. I hate IAP purchases, because I have had this happen several times before. I have a lot of Media and it needs to be cataloged. I move a lot and things go missing.

Developer Response ,

Of course, if you paid for the app in the past, you do not have to pay again. Please continue the conversation that you already had with Support, so that we can help you unlock the app.

Gmablake ,


I love this app. It is exactly what I need to catalogue my books. It’s very flexible and easy to use but provides lots of options for sorting and placing in folders. It also has multiple views of your information. I was really happy to have the free copy to check it out before buying the full version. It does everything I want. I have thousands of books so having the scanner work well is huge. I also like having it on multiple devices. The sync works well. I have been looking for an app like this for years. Can’t say enough good things.

applenicolo ,

The best cloud database I’ve found!

For years I’ve tried several systems to manage my book collection database. I’ve created Excel & Access spreadsheets & databases nothing seem to fit the bill. Spreadsheets although functional lack of visual component that is important to manage your collection. Collectorz is the best app which allows me to store my database in the cloud and access it from all my devices!


Bitz & Pixelz BV
34.2 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
In-App Purchases
  1. No Limits $14.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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