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

Oct 10, 2024
Fun to use
I want to take the time to compliment you on how great Collectorz works. It is a brilliant way to catalog and keep a movie collection updated and it is much fun to use its many applications.
On top of this, your customer care is top notch because besides prompt responses, they have displayed a level of care and professionalism second to none. I'm really glad to be part of Collectorz' family and I highly recommend any media collector to utilize your services.
Norberto B. (USA)
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)
Oct 3, 2024
I am a fan
I’ve long been a fan of your company’s software and end-user services. Now I’m a fan of the customer-support team, too.
Bill B. (USA)
Sep 27, 2024
The best software support
I had been using “Music Collector” (PC version) for about 2 years and recently was having some issues when I added new albums to my inventory (I have about 1,500 albums either on CD of Vinyl LP.) I contacted Collectorz.com user support and then heard back from Anthan-John (AJ) for assistance. We must have exchanged emails about 5x (note I am on the East Coast of the USA and Collectorz.com is located in Amsterdam, the Netherlands) and of course there is a 6 hour difference as they are ahead of me. I did not expect to hear from them until the next day. The next day I received a response and each day after I sent additional info to AJ I heard back the next day. AJ suggested I might want to try the internet version of their software “Music Connect.” I gave it a try and then switched to it because it is a lot easier to add an album and they have my inventory on their server. I can also back-up for inventory on my PC, an external drive or export it to a CV file if needed.

I also use their Android version on my Galaxy S20FE 5G so I can check my inventory as I am shopping for an album, so I don’t purchase one I already own.

I also must say that AJ & Alwin Hoogerdijk, owner and founder of Collectorz.com, provide one of the best software support I have had in years. (I have been using computers since 1986). So if you are concerned about support don’t worry they will always have your back and the annual subscription is extremely reasonably priced.

DWB (USA)
Sep 14, 2024
Your customer service is truly amazing
Wow, I researched your customers comments before signing up and only bought it due to such positive feedback, I can see they are all very true. Your customer service is truly amazing and very rare.. well done , thank you, and I will continue to support you in the future and recommend your products to friends.
Pam H. (Australia)
Sep 6, 2024
THE VERY BEST
These are the best collectors app out there. I have been using it and the other apps since it's inception.Would give 10 stars if possible because it is indeed a great app & has been for many years. Would highly recommend !!!
MnKJ (USA)
Sep 5, 2024
You have a good product
Thank you for reaching out. I have been a long-time user of your comics collection app and as a media collector, your apps are a HUGE upgrade over making your own spreadsheets. I really appreciate them.
Tim P. (USA)
Aug 26, 2024
Thank you!
I just had to renew my CLZ subscription and thought this would be a good time to say thank you for all the work you've put into to making this software as great as it is!

So,

THANK YOU!
Sean M. (USA)
Aug 25, 2024
Customer service
By the way, I really appreciate your customer service. In my experience, it is about the fastest and most responsive of any I've had.
Eldon (USA)
Aug 23, 2024
Keep up the great work!!
Thanks for your assistance with this. I am a CONSTANT and joyful user of both apps. Seriously, I’m that guy at the pub who is sharing my “wish list” over a pint.
DG (USA)

Latest CLZ news


The best day of the week is here once again: NCBD! Here with 500 overall and 220 actual new titles, all prepared for you by the CLZ crew.

Here are a few highlights for you to look forward to when you enter your LCS or when you shop online. DC introduced us to their Absolute Universe last week. This week they are here with the first within that title: Absolute Batman #1. A re-introduction to the characters we all know and love, but ones again with a spin. Transformers is back with #14, Daniel Warren Johnson is the biggest creator of the last 2 years and is knocking it out of the park with this run.

Terminator is back! With a new #1 from Dynamite. Yes, they have a lot of covers, you don’t need all of them to read it. Declan Shalvey and Sal Crivelli are writing this title along with Colin Craker & Luke Sparrow as the artists.

Happy reading!

Read more


Shazam! NCBD is here with 220 new releases and 466 actual releases.

Here are a few highlights for you to look forward to when you enter your LCS or when you shop online. Deadpool No More? Well here is the new one! Deadpool’s daughter Ellie Camacho is her to pick up the mantle in Deadpool #7. DC is here with the introduction of their new Absolute Universe in DC All In Special #1.

Scott Snyder writing, art by Daniel Sampere and Dan Mora. This is surely one you don’t want to miss. The Ghost Machine titles have been intriguing so far, they’re here with a new title: Hyde Street #1. Geoff Johns and Ivan Reis are introducing a new character named Mr. X-Ray. What is his secret and that of Hyde Street? Only they know. For now.

Happy reading!

Small reminder: a nice update for CLZ Comics (v9.9!) with several improvements:

We’re on a roll! After the big v9.8 update in which we made it much easier to subscribe to CovrPrice and get comic values in your CLZ app, last week we released another update (v9.9) for CLZ Comics with several improvements to the app:

  • Re-design of the Sort Order screen
  • New Date and Month folder options for all date fields
  • Statistics: new look for Most Recent and Most Valuable top lists
  • Have/Want summaries: On Order issues are now indicated with a *

Check out some v9.9 screenshots here!

Read more

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CLZ Comics Mobile

v9.9.2: A couple of bugfixes

Oct 02, 2024

Fixed for both iOS and Android:

  • Values from CovrPrice weren’t displayed correctly for Grandfathered users with a CovrPrice Premium plan

Fixed only on iPhone/Android:

  • “Want” summary wasn’t always displaying the correct items on wish list/on order
  • iPad: Edit / Sort Settings screens were too small since iOS18

It’s the last day of September, so here is the CLZ News for Sept 2024.

This month, a big chunk of our time went into the CLZ Comics 9.8 release, in which we strengthened our partnership with CovrPrice for comic values. The development teams on both the CLZ and CovrPrice side have worked together to finally allow subscribing to CovrPrice straight from the CLZ app itself, as an In-App purchase!

Next to that, lots of work on both the Connect web-based software and all CLZ mobile apps. This has already resulted in big updates for mobile, but not for Connect yet. Expect cool updates for the Add screens of both Movie and Game Connect in October.

These are the updates for September 2024:

  • CLZ mobile apps:
    • CLZ Comics 9.7: Improvements for Add Comics, Statistics and Main screen
    • CLZ Comics 9.8: Subscribe to CovrPrice as an In-App purchase
    • All CLZ apps: new Sort Order screen, new Date folder option, nicer Stats
  • CLZ Core updates:
    • Core for Games: “Check Covers” project, 95.6% cloud coverage!
    • Core for Movies: “Check Covers” project, 78.0% cloud coverage!
    • Core for Comics: New Comic Book Day summary, 2,113 new releases

Read more

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CLZ Games Mobile

v9.3: Several improvements and fixes

Sep 27, 2024

A nice update for CLZ Games again, in which we did improvements to several areas of the app.

  • Re-design of the Sort Order screen
  • New Date and Month folder options for all date fields
  • Statistics: new look for Most Recent and Most Valuable top lists

Read more

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CLZ Movies Mobile

v9.4: Several improvements and fixes

Sep 27, 2024

A nice update for CLZ Movies again, in which we did improvements to several areas of the app.

  • Re-design of the Sort Order screen
  • New Date and Month folder options for all date fields
  • Statistics: new look for Most Recent lists

Read more

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CLZ Books Mobile

v9.3: Several improvements and fixes

Sep 27, 2024

A nice update for CLZ Books again, in which we did improvements to several areas of the app.

  • Re-design of the Sort Order screen
  • New Date and Month folder options for all date fields
  • Statistics: new look for Most Recent lists

Read more

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CLZ Music Mobile

v9.3: Several improvements and fixes

Sep 27, 2024

A nice update for CLZ Music again, in which we did improvements to several areas of the app.

  • Re-design of the Sort Order screen
  • New Date and Month folder options for all date fields
  • Statistics: new look for Most Recent lists

Read more

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CLZ Comics Mobile

v9.9: Several improvements and fixes

Sep 27, 2024

A nice update for CLZ Comics again, in which we did improvements to several areas of the app.

  • Re-design of the Sort Order screen
  • New Date and Month folder options for all date fields
  • Statistics: new look for Most Recent and Most Valuable top lists
  • Have/Want summaries: On Order issues are now indicated with a *

Read more


NCBD is upon us! The team has prepared 284 new issues with 668 actual new releases/variants. Here are a few highlights for you to look forward to when you enter your LCS or when you shop online.

DC is doing something really fantastic with Zatanna: Bring Down the House #4. They’re expanding Zatanna’s origin in a really cool way. The incredible visual storytelling done by Javier Rodríguez truly compliments that. Give him more titles DC!
Marvel is back with Phases of the Moon Knight #2, if you are not caught up: This is a title about all the Moon Knights in different time periods. In this issue they are going to the year 2846. A must read for any Moon Knight fan.
Masters of the Universe / TMNT is finally here! Pulling you right back in the 80’s nostalgia. Drawn by Freddie E. Williams II and written by Tim Seeley, this is a instant buy for any TMNT or MotU fan.
Happy reading!

Reminder: Subscribe to CovrPrice as an In-App purchase, straight from the CLZ app

Now live for both iOS and Android: CLZ Comics 9.8 in which we make it much easier to subscribe to CovrPrice and get comic values in your CLZ app. Here’s how:

  • Open the menu using the menu icon top left
  • Scroll down a bit to the heading “Comic Values from CovrPrice”
  • There, tap the Subscription Status line, where it says “Subscribe now”.
  • Choose between paying Yearly (US $60 per year) or Monthly (US $6.95 per month)

>> More info in our What’s New post here <<

Read more