What Collectorz.com does

Collectorz.com, operating commercially as CLZ.com, is a Dutch privately-held software company founded in 2000 (with the Collectorz.com domain referenced as early as 1996 in some firmographic records) and headquartered in Amsterdam. The company develops subscription-based collection database software targeting individual collectors and hobbyists who need to catalog personal libraries across five media categories: comics, movies, video games, music, and books. Its product portfolio consists of five category-specific core applications (CLZ Comics, CLZ Movies, CLZ Games, CLZ Music, CLZ Books), each delivered as a native mobile app on iOS and Android and as a web application at app.clz.com, with cross-device synchronization through the proprietary CLZ Cloud service.

The underlying technology is centered on five proprietary core databases containing detailed metadata, cover imagery, and catalog identifiers for each supported media type, which the company updates continuously to track new releases and variants. The signature workflow uses barcode scanning via mobile devices to instantly match physical items against the core databases, eliminating manual data entry. Supplementary features include location tracking for stored items, wish-list management, custom field personalization (incoming for mobile in July 2026), and cover thumbnail list views in the web app. The firm also operates an e-commerce storefront (shop.clz.com) and a community support forum (Club CLZ) for category-specific peer assistance.

The business model is a self-serve, product-led growth subscription software offering annual or multi-year access to the CLZ suite for individual consumers globally. Distribution is entirely digital through the Apple App Store, Google Play, the CLZ web app, and direct downloads, with marketing driven by Trustpilot reviews, the Club CLZ community, and an active blog/newsletter. The company operates with a team of 1-10 employees, has never raised external capital, and celebrated a record number of subscribers in June 2026 while keeping the exact figure confidential.

Name

Collectorz.com

Legal name

CLZ.com

Website

https://collectorz.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

1–10 employees

Short description

CLZ.com (Collectorz.com) is a Dutch subscription software company offering self-serve mobile and web apps that help individual collectors catalog personal libraries of comics, movies, video games, music, and books via barcode scanning and cloud sync.

Ownership category

akta.pro rank

Product category

Personal Collection Database Software

NAICS

Hobby, Toy, and Game Retailers (459120), Sporting Goods, Hobby, Musical Instrument, Book, and Miscellaneous Retailers (459)

SIC

Retail-Hobby, Toy & Game Shops (5945), Retail-Computer & Computer Software Stores (5734)

akta.pro primary industry

Library Collections & Cataloging Services (Acquisitions, Metadata, Circulation) (EDAEAGAE)

Keywords

• Collection database software
• Media cataloging apps
• Barcode scanning software
• Cloud sync collection
• Personal media management

Headquarters

HQ city

Amsterdam

HQ country

Netherlands

HQ region

Europe

Markets served

GTM type

B2C

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Subscription Software/App Access: Annual or multi-year subscription model for access to CLZ collection database software across mobile apps (iOS/Android) and web platforms. Subscribers gain access to core databases, cloud sync, and regular updates.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Collectorz.com (CLZ.com) develops and sells subscription-based collection database software that lets users catalog and manage personal collections of comics, movies, video games, music, and books. Products are delivered as dedicated iOS and Android mobile apps and a browser-based web application, with barcode scanning for rapid item entry and CLZ Cloud for cross-device synchronization of collection data.

Product overview

CLZ offers a suite of collection database software products designed for cataloging movies, books, music, comics, and video games. The portfolio consists of five category-specific core products (CLZ Comics, CLZ Movies, CLZ Games, CLZ Music, CLZ Books), each available as both mobile apps (iOS/Android) and web applications. Users can work on phone or computer with data syncing between devices via CLZ Cloud. Key features include barcode scanning for rapid entry, cover thumbnail display, wish list tracking, and upcoming custom fields capability.

Differentiator

Problem solved

Functional benefit

Brands

• CLZ Comics: Collection database software for cataloging comics
• CLZ Movies
• CLZ Games
• CLZ Music
• CLZ Books

Products and services

• CLZ Comics Collection database software for cataloging and managing comic book collections, available as dedicated iOS and Android mobile apps and a web application. Targeted at personal comic collectors who want to track issues, identify missing entries in a series, and sync data across devices via CLZ Cloud.
• CLZ Movies Collection database software for cataloging and managing personal movie collections, available as dedicated iOS and Android mobile apps and a web application. Includes barcode scanning for quick addition of titles and location tracking to log where physical copies are stored.
• CLZ Games Collection database software for cataloging and managing personal video game collections, available as dedicated iOS and Android mobile apps and a web application. Designed for collectors tracking owned titles across platforms.
• CLZ Music Collection database software for cataloging and managing personal music collections, available as dedicated iOS and Android mobile apps and a web application. Supports track list export and printing.
• CLZ Books Collection database software for cataloging and managing personal book collections, available as dedicated iOS and Android mobile apps and a web application. Used by readers to log owned titles and avoid duplicate purchases.
• CLZ Web Web-based application that lets users manage their collections through a browser, with cover thumbnail list views, keyboard shortcuts, and an option to install as a desktop app. Supports the same five media categories as the mobile apps.
• CLZ Mobile Suite of native mobile applications for iOS and Android that let users scan barcodes to add items, sync their collections with CLZ Web, and manage their libraries from a phone.

Quantifiable outcome

• Collection of 2100+ titles managed effectively

Named customers4 records

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Discogs: The world's largest crowdsourced music database with built-in collection management and marketplace features. The most direct competitor to CLZ Music, serving the same collector persona with free cataloging tools backed by a vinyl/CD marketplace.
• Memento Database: Cross-platform, customizable personal database for cataloging any collection (cards, coins, DVDs, etc.). A direct peer to CLZ's general cataloging philosophy but with greater user-driven schema flexibility rather than vertical-specific databases.
• Letterboxd: Social movie-tracking platform where users log, review, and list films. A direct peer to CLZ Movies with a stronger social/community layer and a free (ad-supported Pro) model that competes for the same collector's logging behavior.
• Goodreads: Amazon-owned book cataloging and social reading platform. Directly competes with CLZ Books by offering free shelving, review, and discovery tools — leveraging Amazon's catalog metadata as a built-in data advantage.
• LibraryThing: Personal book-cataloging service for serious readers and small libraries, with rich metadata and tagging. Closely comparable to CLZ Books, especially for users managing very large personal libraries with detailed taxonomies.
• Backloggd: Video game collection and review tracker with a Letterboxd-style UX. The closest direct competitor to CLZ Games, particularly for users tracking large libraries of played and backlogged titles.

Emerging players

• AniList: Anime and manga tracking platform with rich cataloging and community features. An adjacent vertical-specific cataloging service that intersects with CLZ Comics and CLZ Books in the graphic-novel / sequential-art collector segment.
• Sortly: Visual inventory-management app for small businesses and households to track physical items via photos and QR/barcodes. Adjacent to CLZ's cataloging mission with a SMB-leaning go-to-market and stronger photo-first UX.
• Trakt: TV and movie tracking service that syncs viewing history across streaming services and media players. An emerging peer to CLZ Movies focused on digital/streaming consumption rather than physical disc cataloging.
• BoardGameGeek: The dominant board game database and community, including collection and plays-tracking features. A partial peer for hobby collectors that overlaps with CLZ's mission but focuses on tabletop games rather than media catalogs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/collectorz
• Facebookfacebook.com/Collectorz
• LinkedInlinkedin.com/company/collectorz-com

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Collectorz.com