Welcome to CLZ!

CLZ is THE collection database software!

Easily catalog your comics, movies, video games, music or books.

Work on your phone or computer and sync data between them.

Reviews from CLZ users

Mar 7, 2025
Invaluable tool
Excellent app and an invaluable tool that makes collecting easier and more fun. Very user-friendly, highly recommend.
Sonny Coelho (Canada) on CLZ Comics Mobile
Mar 4, 2025
Great Service
Great service!! Had an issue with my account and they were very quick to help and get it all sorted out! Great communication and very helpful.
tommy80! (USA)
Feb 28, 2025
Impressed
Thank you for your very prompt reply. I must say I have always been very impressed with the speed and utility of your company's response on the few occasions I have had a problem.
John M. (Australia)
Feb 27, 2025
Thank you!
CLZ is always so helpful and I recommend your product to all my friends!
New England Lace Group (USA)
Feb 14, 2025
Amazingly responsive
I appreciate your quick response and resolution. As usual you guys are amazingly responsive.
Lynne S. (USA)
Feb 2, 2025
The best at what they do
These guys are the best at what they do and are very quick to answer any issue a member has.
Patricia Coffman (USA)
Jan 31, 2025
The best on the market
You and your team are doing a great job hence these improvements continue to make your APP the best on the market.
Cheers to all of you.
Pete (Canada)
Jan 31, 2025
Awesomeness
This is great! Congratulations CLZ team, keep up the awesomeness.
Brandi L. (USA)
Jan 27, 2025
Loving your app
CLZ really is the best available, period.
Larry N. (USA)
Jan 15, 2025
Great for keep track
Very good app for what it does. If you're actively collecting great for keep track. Constantly upgrading also.
Honestly customer service has got to be the absolute best I've seen in a long time.
W Rock (USA)
Jan 13, 2025
Thanks!
Thanks again for you great work and support.
Jay Walston (USA)

Latest CLZ news

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CLZ Comics Mobile

v10.2.3: Fix for new CovrPrice subscribers

Mar 24, 2025

Fixed an issue where new subscriptions to CovrPrice weren’t registering correctly for some users.

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CLZ Movies Mobile

v9.7.4: Fixed a crash in Pre-fill Settings

Mar 24, 2025

Fixed:

  • A crash in the Pre-fill Settings screen
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CLZ Comics Mobile

Week 13: Most wanted comics

Mar 24, 2025

These top-10s are created by you all, the users of the CLZ app and software, as they’re based on how often these comics already appear on your wish lists in the CLZ Cloud, even before release!

Read more


Fixed:

  • Add comics/Check value: A freeze could occur after scanning multiple covers
  • A possible fix for the camera image looking “warped”

It’s NCBD, the best day of the week!

In Eddie Brock: Carnage #2 we follow Eddie Brock as he turns himself in to the police. Why would he do that? What are his plans? With Jesús Saíz and Charles Soule as artists you just knów it is going to be criminally good.

The Absolute Universe, the twisted reality created by Darkseid, sees many popular reimaginations of the World’s Finest heroes. Absolute Flash #1 begins with a teenage Wally West and the struggles he faces in daily life. His life will change forever when he meets military scientist Dr. Barry Allen.

If you liked the Saturday morning cartoons from your youth, chances are that you’ll lóve The Herculoids. In The Herculoids #2 the heroes deal with the aftermath of the alien treath of the last issue, while preparing for a new one. Location of this new threat? Right under their feet!

Happy Reading!
Read more

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CLZ Comics Mobile

Week 12: Most wanted comics

Mar 17, 2025

These top-10s are created by you all, the users of the CLZ app and software, as they’re based on how often these comics already appear on your wish lists in the CLZ Cloud, even before release!

Read more


Coming up soon, yet another huge update for your CLZ Books app! This is something we have been working on for many months. And now we are finally so close to release that I can disclose what is coming up:

New in CLZ Book 10.2: Automatic book values and retail prices!

With this new update, our CLZ Core online book database will provide book value/pricing information for used books, plus retail prices.

In more details, this is what will be new in version 10.2:

  • Get values for your books, based on average selling prices of the books on various online used book stores.
  • The old “Current Value” field will be renamed to “My Value” and will let you either OVERRIDE the automatically provided value, or just fill in a value for books that did not get an automatic value.
  • Get automatic retail prices in the Retail Price field (previously named “Cover Price”).
  • Use the new Update Values screen to regularly update your book entries with up-to-date Value and Retail Price information.
  • Optionally use the Retail Price as a “fallback value”, when an automatic Value is not available.
  • See Value statistics and totals in the Statistics screen
  • Sort your book list by Value

Will I get values for all my books?

With close to 40 million books in our CLZ Core database, we will not be able to provide a value for all books in your collection. In particular, books without ISBN will not get values, as our value system is purely based on ISBN lookups.

Currently, our Core and Cloud statistics show that CLZ Books users will get a value for around 83% of their books, on average. Your mileage may vary, for example, if you own mostly mainstream US books with ISBN, your percentage may be closer to 90%. If you own mostly antique books, or only books in the Polish language, your coverage will probably be much lower.
The coverage of books with a value may slightly improve over time, as we are still gathering value information for less popular books.

Automatic values will be a premium feature, available for subscribers only

The “Automatic Values” feature will be the first “premium” online feature for CLZ Books. This means that it will only be available for users with an active paid subscription.

In particular, this means that this feature will not be available for users who are still using the app in “grandfathered” mode (as they purchased the app before it became a subscription app). Of course, grandfathered users who DO want access to this feature are welcome to get a paid CLZ Books subscription)

ETA ??

Coming up within a few weeks. I will send out a Sneak Preview email with more screenshots once we are closer to the final user interface.

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CLZ Comics Mobile

v10.2.2: Maintenance build

Mar 14, 2025

This version has a couple of behind-the-scenes maintenance changes.


Comics! Get your comics! Fresh off the press!

Yes, we know the sequels are not received well. But Marvel is doing something really cool with Star Wars: Legacy of Vader #2. Charles Soule has you going back to the origin of Vader through the eyes of Kylo Ren. By having him go back to places Vader has visited in the past. You’re visiting Tatooine once again with pirates on Rancor’s and a member of the Hutt family! Great fun!
For DC this week we want to put the spotlight on a few classics that have been reprinted. Swamp Thing, Vol. 2 #37, Batman #31, Batman Adventures #12 are all getting facsimiles, which of these are you picking up?

Time is having a crisis. Mingling in the red-light district, you can find actual cavemen, medieval knights, and cyborg soldiers on leave from World War IV. Victorian debutantes amble their way into cell phone stores, confused and bewildered (what is a data plan?). On their way to work, bleary-eyed commuters get trapped in time-loops, assaulted by alternate-reality versions of themselves, and try to avoid post-apocalyptic wastelands. And LOOK: the 3:15 bus just took a wrong turn… into the neolithic era. That’s Assorted Crisis Events #1 for you in a nutshell!. Deniz Camp and Eric Zawadzki along with Jordie Bellaire are giving you an ongoing, zig-zagging anthology series about the compromised clicks of our clocks-full of one-shot stories both beautiful and ugly, tragic and redemptive, surreal and somehow all too familiar.

Happy Reading!
Read more

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CLZ Comics Mobile

Week 11: Most wanted comics

Mar 10, 2025

These top-10s are created by you all, the users of the CLZ app and software, as they’re based on how often these comics already appear on your wish lists in the CLZ Cloud, even before release!

Read more