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

Nov 16, 2024
Why did I wait so long?
After two decades of a tiny scribbled notebook, and another decade using the Notes app on my phone to keep track of my comic book runs, I finally decided to make the switch to using an app to help me with my 5000+ issue (and growing) collection.
COULD.NOT.BE.HAPPIER.
CLZ was the answer, all along. Literally days after I installed the trial, I received an email, asking how I liked it, but more importantly, asking for suggestions for ways to improve the app. That blew me away. I have loved every day with this app since, and cannot recommend it enough.
TheBadTrip (USA) on CLZ Comics Mobile
Nov 15, 2024
Excellent database
CLZ Music is an excellent database, but I shouldn't be surprised. I also have CLZ Movies and CLZ Books which are excellent databases for my films and books respectively. All of them get regularly saved to a cloud so if the worst happens and I can't open the CLZ version, I can go to the cloud and build another from there. If not, contact them for help which is helpful and will soon have you up and running again. I would say I have used these databases for more than 15 years now.
Karen Denmark
Nov 11, 2024
The Best Out there!
CLZ continues to produce winning apps, this one is no exception. Hands down the best way to keep organized and avoid duplicating a movie. Super easy to use to locate, add, or adjust your collection. Next up…action figures?
I’m so glad to be connected to the company and also it’s worth noting they are VERY responsive to the collecting community…they truly care!
Russ1850 (USA)
Nov 7, 2024
My libraries organized
Thanks for making such programs, they really help keep music, movies and book libraries organized.
Errol Hunt (USA)
Oct 24, 2024
Amazing
Really appreciate your amazing customer service.
Maryann C. (United Kingdom)
Oct 20, 2024
5 stars!
Great app. Very helpful and great support. This is the premier way to track and value your collection.
Donald Riley
Oct 18, 2024
High level of customer service
I wanted to thank you very much for the credit you have issued to me and the clarification of what I should be purchasing in the future. If all companies had the same high level of customer service as Collectorz we would be a lot better off.
Larry F. (USA)
Oct 14, 2024
Great app!
Great app with stellar customer service.
GamingCritic955 (USA)
Oct 13, 2024
Top class support
I just want to say that your support has been fantastic, you have been excellent and I really appreciate the time, effort and patience you have had with this.
Top class support. Thank you so much.
Richard (United Kingdom)
Oct 10, 2024
CLZ is a great product
Thanks so much for you quick response to my question. CLZ is a great product that contributes to my enjoyment of my collection.
Scott Hornsby (USA)
Oct 7, 2024
Quick service
The process you suggested worked!
Thank you for quick and knowledgeable service.
George Dyer (USA)

Latest CLZ news


Happy New Comic Book Day everyone! This week we prepared 218 new issues with 474 releases overall.

This week DC Comics gives us #1 of the brand new series The Question: All Along the Watchtower and it stars former Gotham detective Renee Montoya as The Question. There’s no question this will be spectacular, so be sure to watch out for this one.

If you like your comics spooky and mysterious, then I would advice to check out #1 of Barstow, a new mini-series published by Dark Horse Comics. Barstow is the name of a town located in the middle of the Mojave Desert. Expect possessed locals and demonic battles in agent Miranda Diaz’ battle to find a missing colleague.

And finally, do you want to know the secret past of Minnie Mouse? If so, then be sure to check out What If…? Minnie Became Captain Marvel, published by Marvel Comics.

Happy Reading!

Read more


Fixed in Add Books:

  • Type ISBN: Problems when copy/pasting ISBNs with spaces, dashes, enters, etc. inside them
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CLZ Comics Mobile

NCBD: Most anticipated comics for week 47

Nov 18, 2024

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 in Add Books:

  • Scan ISBN:
    • A crash could occur during scanning of ISBNs
    • Crash if user did not grant camera permissions
    • Crash on devices without a camera
  • Type ISBN:
    • “Invalid ISBN” error when copy/pasting ISBNs with spaces, dashes, enters, etc.
    • A double keyboard could appear when switching between CLZ Books and other apps
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CLZ Games Mobile

New Video Game Day – Week 46!

Nov 15, 2024

These are the new big video game releases for this week!

  • LEGO Horizon Adventures
  • Dragon Quest III HD-2D Remake
  • Farmer Simulator 25

Now available in CLZ Core, for easy adding to your app, complete with:

  • Barcodes
  • Cover images
  • Backdrops
  • Descriptions
  • Trailer videos

Read more


Fixed:

  • Add Books: Type ISBN: Paste wasn’t working
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CLZ Books Mobile

v10.0: Read ISBN numbers with OCR!

Nov 14, 2024

CLZ Books version 10 is here! And this big update is all about adding books by ISBN.

Here’s what’s new in the Add Books screen:

  • Scan screen now also “reads” actual ISBN numbers using OCR
  • New scanning feedback shows where it “sees” a barcode or ISBN number
  • Now quickly detects ISBN barcodes and ISBN number in entire scan screen
  • Faster online ISBN lookups for most ISBNs
  • New “Type ISBN” tab: enter ISBNs manually, use external barcode scanner

Read more


A new week, a new New Comic Book Day! This week we prepared 242 new issues with 583 releases overall.

Image Comics goes out guns blazing with the brand new series G.I. Joe, Vol. 1 (Image). Void Rivals and Transformers set the way in the Energon Universe and now it’s time for the newly assembled special force G.I. Joe to try to save Earth, or what’s left of it, from the mysterious COBRA. Expect to see many familiar faces and a first appearance of a supposedly new character.

Over at Marvel Comics, Uncanny X-Men, Vol. 6 #6 gives us a conclusion to the RED WAVE storyline. Be sure to check out that beautiful David Marquez cover art!

And we all know Tom Hardy as an actor, famous for playing roles like Venom or Bane. But do you know he’s also a comic book writer? In Arcbound, published by Dark Horse Comics, he joins forces with big names like Scott Snyder, Ryan Smallman and Frank Tieri to bring you the story of a Mediator named Kai who’s living in a wartorn universe and stands on the brink of discovering a mind-shattering secret…

Happy Reading!

Read more

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CLZ Comics Mobile

NCBD: Most anticipated comics for week 46

Nov 11, 2024

This top-10 is created by you all, the users of the CLZ app and software, as it is based on how often these comics already appear on your wish lists in the CLZ Cloud, even before release!

Read more


A big v10.0 update is coming up for your CLZ Books app within 2 weeks, so here’s a Sneak Preview!

CLZ Book 10.0 will bring a vast improvement to the Add Books by ISBN feature!
Previously the scan screen could only scan ISBN barcodes, but v10 will also “read” ISBN numbers that are printed on the book using OCR (Optical Character Recognition).

Read more