Keep track of your book collection
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CLZ Books
Mobile
Mobile app for your phone or tablet
iOS & Android
iOS & Android
USD $19.95
per year
More about the mobile app
CLZ Books
Web
Web-based software for your computer
Windows & macOS
Windows & macOS
USD $39.95
per year
More about the web app
CLZ Books
Mobile + Web
CLZ Books Mobile
1 year
CLZ Books Web
1 year
USD $0.00
USD $0.00
save USD $0.00
Or... use them both,
as perfect companions!
Both CLZ Books Mobile and CLZ Books Web can be used on their own, as a stand-alone solution. But these tools really come to life when used together, as they are great companions. While away from your computer use CLZ Books Mobile on your phone, then use CLZ Books Web at home, to work on your database on a big screen, with a real keyboard. Of course, you can sync your database between them through our CLZ Cloud solution.
Latest software updates
v9.4: New app icon to fit our new company name and logo
Oct 12, 2024
v9.3: Several improvements and fixes
Sep 27, 2024
v9.1: CLZ Books is now free to use up to 100 books
May 31, 2024
Improved search behaviour
May 24, 2024
v9.0: Collection tabs, better Add Books and “ISBN not found” screens
Apr 19, 2024
Oct 12, 2024
Keep track of my library
I have always loved using this app to keep track of my home library and I'll always recommend it!
Reviews from customers
Sep 3, 2024
Keep track of what books I own
I really only use it to keep track of what books I own, so when I'm out I can check this to see if I already own a book before I purchase. It’s great for that purpose.
Aug 21, 2024
The best I have found
I have over 1200 books and have used a number of catalog apps over the years. CLZ Books does the job of keeping track of my library and gets syncing right. Most importantly (speaking as a software developer) they keep improving the app. It’s tough to make a business of niche software products. These folks have apparently figured out how to make a go of it and they keep improving. Kudos to them!
Jun 18, 2024
Handy app
A really handy app to keep track of my ever increasing book collection. It also allows my family to check if I have a book before they buy any.
Jun 17, 2024
Highly recommended
The app does a great job of keeping track of my library. It's easy to add books, and to keep everything synced with my CLZ account in the cloud. Great support as well. I recently had an issue with the app (I couldn't add a new book), and the support team worked with me until the problem was resolved.
Mar 8, 2024
I love CLZ Books!!!
It’s the best way for me to keep track of all my books.
Feb 14, 2024
Highly recommended
I'm been using this app for a few years now. I can't begin to tell you how pleased I've been with both it's performance and completeness. If you have books, movies, and music to keep track of I highly recommend this app.
Jul 17, 2023
So easy
Makes it so easy to keep track of the books in our personal library!
Feb 20, 2023
Library
Great way to keep track of my written library.
Feb 17, 2023
I have used this app for the past 4 years as I collect manga, light novels, comics, and books. This app has been the best way for me to keep my collection organized and help me keep track of what I own. I especially like that I am able to manually add in any obscure titles that I may find into the database. I would highly recommend this app for anyone wanting to keep track of their book collection.
Jan 20, 2023
Just what I needed
App turned out to be just what I needed to keep track of my massive (and growing) book collection. Had way more of my titles automatically in the system than I thought going in (figured I'd have to add a lot of them manually but actually really smooth). Sytske helped me with a little issue but otherwise lovely app and people behind it.
Jan 4, 2023
My llbrary
Great way to keep track of my library.
Jul 30, 2022
Your library in your pocket
User friendly app to keep track of books, music, and more. Know what's in your media library and avoid duplicate purchases. You can even create a wish list for items to add to your library. Works on a desktop computer as well as a smart phone.
Jul 17, 2022
Keep track of my books
I use this app to keep track of books I own and read. It is fantastic.
Jul 9, 2022
Keep track of our extensive library
Best app we have found to keep track of our extensive library. Love that you can make personal notes as well.
Jun 17, 2022
Keeps me sane
I have had this app since 2018. This is the one app that has kept me sane. It does everything I need around books. All the memory is stored on the app so I do not have to worry about memory space. I have almost 800 books and this app has made it easier for me to know what I have, keep track of where the book is ( I am able to include notes on a book if I have to lend it out to friends or family) and adding new books is easy. I highly recommend this app to anyone who has or is planning to build their home library.
Jun 1, 2022
My book collection
This is a great app for keeping track of my book collection.
May 22, 2022
Perfect to keep track of everything
Downloaded the trial and started adding books, upgraded to yearly subscription within 1/2 hour! Most of my library is packed away for a bigger house so this app is perfect to keep track of everything I have and don't have as I keep going with my collection. The book Nerd and organiser in me LOVES this app!
May 18, 2022
Easy to use
Great way to keep track of my books.
May 10, 2022
The best book app
Best book catalogue ap ever So easy to keep track of my books.
May 6, 2022
Book library
I recommend Collectorz to all the collectors I know and my father-in-law loves it for keeping track of his extensive book library.
Mar 19, 2022
Keep track the books I've read
Since I read a lot, I really wanted a way to keep track the books I've read, author, plot, etc. After trying a few apps out, I stumbled upon CLZ Books and I love this app. It does just what I was looking for and more. When I ran into a small glitch, the creators were very responsive and worked with me until it was fixed.
Mar 16, 2022
Excellent tool
An excellent tool to keep track of, and categorize my large collection.
Feb 20, 2022
Top Notch App!
The CLZ Book app is the best app available for keeping track of your book collection. I use this app a lot when I go to Barnes & Noble. I can’t always remember if I have already purchased a book, so I open the CLZ Book app and check my collection. It has saved me several times from making duplicate purchases.
I look through my collection a lot and it is just a great source of reference!
I look through my collection a lot and it is just a great source of reference!
Nov 19, 2021
Thanks again for a marvelous app
Thank You for reaching out! I sincerely appreciate that extra bit of customer support and actually cannot say enough good things about this app! Lol I have been telling all my friends about it! I even shared it to my pangobooks page and have an upcoming post on my instagram about this app! I uploaded over 500 books in one day! And over 100 more since then! I have numerous copies of each title and this app made it a DREAM come true for keeping track of all my books!
Thank you from the bottom of my book bogged heart!! I wish my P.O.S. inventory was that easy. I love that I can keep track of books that I have, that I don't have but wish I did, and books I have extras of and sell those but they stay in my catalog if it's a favorite... lol. I will definitely save it to the cloud then I didn't know what that function meant yet so thank you.
Thank you from the bottom of my book bogged heart!! I wish my P.O.S. inventory was that easy. I love that I can keep track of books that I have, that I don't have but wish I did, and books I have extras of and sell those but they stay in my catalog if it's a favorite... lol. I will definitely save it to the cloud then I didn't know what that function meant yet so thank you.
Nov 14, 2021
I love this app! Best ever!
I have soooo many books and I have been looking for a way to keep track of them all in one place and this is perfect so when I'm out I can check if I already have a book before I buy it! I added 102 individual titles (between 2-10 copies each) in less than 30 minutes, no lie this app is really that easy!! And the price?! The only thing I love more than books is a really great buy on something that actually does what it's supposed to and folks... this is it!
Oct 31, 2021
Keep track of what I have
I was so excited to use this app to help me keep track of what I have, keep specifics about what versions I have and to simply check on my phone when I'm out shopping to find items I want to add to the collection. The visuals and options to display are rewarding. Responses to questions are timely. It is one of those things that gets better the more you use it and learn it's capabilities.
Sep 21, 2021
Does it all. Cover to Cover
I had tried a few catalogue apps for my book collection. Most were okay, but they didn’t do everything I wanted, or they were too difficult to manoeuvre through, or just too expensive. Then one day, about 7 or 8 years ago, the one I was using just quit working. I couldn’t even get into it to export what I had already entered in. I went online and found out that it was done, no longer supported, and no questions would be answered. So I went online and started looking. It didn’t take long. I found a reference to Book Collector. This was an app that I could download and it looked like it would everything that I wanted. It was a reasonable price, and so I decided to give it a try.
FABULOUS ! FABULOUS ! FABULOUS ! It does everything I need, and does it well, and smoothly, and with over 3500 books on my shelves, that’s important. Since then I have switched to their cloud service, CLZ Books. I no longer have to use my memory space. I just log in, make entries, deletions or changes and it’s done. The price is still very reasonable. This is the best book cataloguing service of any I have ever used. They also offer apps or cloud service for collectors of Movies, Music, Comics and Games. This team of developers has done and continues to an outstanding job. I would 100% recommend this to anyone who has a library to keep track of.
FABULOUS ! FABULOUS ! FABULOUS ! It does everything I need, and does it well, and smoothly, and with over 3500 books on my shelves, that’s important. Since then I have switched to their cloud service, CLZ Books. I no longer have to use my memory space. I just log in, make entries, deletions or changes and it’s done. The price is still very reasonable. This is the best book cataloguing service of any I have ever used. They also offer apps or cloud service for collectors of Movies, Music, Comics and Games. This team of developers has done and continues to an outstanding job. I would 100% recommend this to anyone who has a library to keep track of.
Sep 15, 2021
Perfect for the classroom!
I love this app! I have been a teacher for 29 years and have been trying to keep track of all of my classroom books. I have over 1,000 children’s books that are now organized nicely with in this app. I love the features of being able to tag the book with key words for future searches. Uploading books is easy and quick.
Sep 11, 2021
I rely on and trust CLZ
Best software for book collectors. I have so many titles in different formats and different places, i can not keep track without CLZ.It’s reliable, customizable, fun to work with. Syncs perfectly with its PC version. Always improving, and excellent customer service. Highly recommended