Book Database Software

Al vele jaren gebruik ik bijna dagelijks deze app als mijn boekenkast in mijn binnenzak. Als enthousiaste lezer en als lees ambassadeur is dit een handige en onmisbare app. Van harte aanbevolen. Ook de support is snel en persoonlijk mocht er onverhoopt iets misgaan. Veel leesplezier gewenst.

The best app I have ever used to catalogue my book collection, I have been a user since the start, and with the active development team new features and performance enhancements are regular posted. I would recommend this app and their other apps to anybody.

I got convince by a Martha Stewart review a long time ago, and this has been extremely useful. The step to making it even more useful is to take the physical books and sort them by the Library of Congress number which is in the database.

My husband and I are both voracious readers and have over 2000 books (including childrens books) we moved about 5 years ago and never really ‘organized them’ well. With this app we dont have to be organized! I can just click the bookshelf and which row the shelf is and now I can find my book so easily! Best app ever! Easy to scan them and set up shelves. Easy to search by title and author.

I don’t usually do app reviews but I’m compelled to do one for CLZ Books given my experience over the past year and specifically within the past couple days. I’ve been using CLZ Books for a few years now, to varying degrees, but I have really started to put it through some hoops in the past year as I’ve finally begun to organize and catalogue my book collection, now approaching 2250 titles.
I first got it to replace another library app that went defunct, to help me avoid my common mistake of buying a book I already had, but I was quickly a fan of how easy it was to add books to my collection and to make notes for each entry. And with every update, improvements were made that made organizing my library a little bit easier.
There is a lot of data available for almost any book you might have, and adding books not in their database is pretty easy.
The best part of CLZ Books is the responsiveness of their customer support. The other day I had to reinstall CLZ Books on a new phone, and after I’d synced my library to the cloud, the app kept crashing. I was despondent because organizing my library has been a big part of my daily life for months, and the thought of not being able to use the app as a resource was rough.
I looked through the online CLZ community for any hint as to what was going on, and I fired off an email to CLZ support describing my situation. Within hours, I received a reply that a bug had been detected in a recent update and that they’d just pushed through a new update to resolve the issue. Sure enough, once I downloaded and installed the new update, it worked perfectly and I can now continue to organize my library.
Is it perfect? No, there are some sorting and search issues that can be improved upon, but I’m relatively confident that CLZ support will be responsive to comments and questions on the various forums and emails and get us to as close to perfect as we can expect.

To paraphrase the iconic Ms. Tina Turner, the CLZ Books app — whether it's on my phone or computer — is SIMPLY THE BEST — PERIOD.

Helpful to keep track of books you own and books you want to get. Several options for organizing how you want. Recommend this and the other CLZ apps!

This app provides a great way to catalog your library. Intuitive and easy to use, and constantly being improved by the developers. Love it!!!

Thank you for always staying on top of updates, and for acknowledging the developers who discover the need for them! I have been able to catalog and maintain over 1,800 books in my private collection with this easy-to-use application.

I’ve been using this product since before it was an app, and bought a bar code scanner for my PC. It’s just gotten better and better over the years. I own almost 5000 books, e-books and audio books, and I can check my inventory at any time from my devices, PC, or a browser.
Recently I decided to sell some of my business books, (I’ve retired), and the new pricing feature has been a huge help to determine which to keep, donate or sell. I also track books I loan, which ones I’ve read, where I got them, and where I put them (I have a lot of bookcases.)
In general I’m not an app fan, but this is the exception to that rule. The team are super friendly, send me quick personal emails when I have questions, have implemented suggestions, and continue to innovate. I couldn’t be happier with it.

Für mich das perfekte Programm zum Verwalten meiner Sammlung, da wird das Katalogisieren der Bücher schon fast zu einem eigenen Hobby :)

I have been using CLZ for my 2,700 book collection AND for my 1,300 DVD/ Blu Ray collection for over 15 years. With the size of both collections I was often duplicating purchases of books and disks until I started using CLZ web and mobile software. Both platforms were easy to setup and use.
Over the years their developers have asked for us users for input on how to improve their products. The upgrades the have made makes it more versatile and efficient. Whenever I have a question they respond immediately and in this day and age that is something special.
I highly recommend CLZ products to any collector. You will not be disappointed.

Easy to install on the phone, updates were quick.

Couldn’t be easier to use. Scanning the barcodes makes life so simple and it can even read the ISBN codes if there is no bar code. Integrates seamlessly with web version and syncs easily. Very, very pleased highly recommended.

Best book catalog app ever.

Love the app. I even recommended the app to my friend. I was able to catalog most of my books all 187 of them. With the 8 books that didn’t show, I am able to manually type in all the info and take picture of the book cover and upload it.

Sehr gutes und nützliches Tool.

Quick scans great options. Documented everything in about two hours.

January 2026, will be my 1 year anniversary of having this app. Favorite points: Easy to use. Organized how I want it. You can take pictures of, the front cover, back cover, and side binding, for the visual memory of the book, instead of only seeing a title. Wish list: I wish the book shelf visual was in the app, with more choices of visuals and color personalization. I wish to synch all of my digital books; Play books, Kindle,Audible.

tried a lot of different library apps and this is by far the best one. they have most of the special editions I own, even brand new ones that aren't on the market yet and if they don't have it, it's easy to add, while I really struggled with finding and adding special editions on other apps. also love that it's independent owned and run by a small team!!

Makes cataloguing my collection so easy!

This is the 3rd library app I've sampled and far and away the best! It scans the isbn number even if there's no barcode. It easily identifies the isbn inside a paragraph of words. This makes the job go so much more smoothly!

I have the movie app and I thought I would try the book app. It’s easy to use and sort. I love the fact I can scan to add. On my way to my own personal library.

I have way way too many books and this app has been effortless and intuitive.. plus it works!!! Having subscribed to other book inventory apps in the past that have started crashing at about 500 books im thrilled with how robust the app is and I adore the values feature. Super handy info. Love this app!!

Very well analyzed and implemented application/system.

I am so happy I downloaded this app. All of my books at my fingertips!

A blessed weekend. I am truly enjoying this application. It has made such a difference. Every time I work with it adding the tons of books I have I discover "how to" of another feature. I understand better how to categorize my books etc.
I was looking for a free application which I found but it is worth it to upgrade to unlock more features which I am sure I can benefit from.

UPDATE: 11/21/2025 Had an issue with book search and scan . Issue was resolved in a few days. Absolutely love this app. The entire CLZ team are the best. Easy to work with and they listen to dusty.
UPDATE: once again, Alwin and his team provide the best customer service available! I noted an issue and received an immediate (less than 2 minutes!) response. Naturally, he was right and I was wrong, oops. Keep your book collection neat and tidy everywhere you go.
CLZ Books has to be the best app available! The developers spend countless hours upgrading, improving and revising so that the end user experience is fantastic! I can think of no other app that I recommend so vigorously. Been using CLZ Books for two years now and have been pleasantly surprised. Top quality customer service. (This alone grants the developers 5 Stars) Inexpensive compared to other apps. They are continually interested in updating and improving this app for everyone. Easy to use and enter new books. There’s a space for almost everything and the final result will help you keep track of all your times. Many thanks.

The is a great app for book cataloguing with a huge database. Fairly easy to use, especially adding new books/editions.

It's already paid for itself in duplicate books I didn't buy.