Comparison

CLZ Comics collection database vs shelf

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CLZ Comics collection database

Effortlessly catalog your comic book collection by scanning covers or barcodes. Automatically retrieve issue details, creator information, and artwork. Organize your library into multiple collections and sync across devices with cloud backup.

Highlights
  • Scan comic covers for automatic data retrieval
  • Barcode scanning for quick entry
  • Edit all comic details and add custom fields
  • Create multiple, organized collections
  • Cloud sync for backup and multi-device access
  • Optional comic valuation add-on
Features
Read full description

Easily catalog your comic collection. To add comics to your app, just scan the cover with your device camera. The app will recognize the comic and then automatically provides issue details, cover art, creator lists, key information and more. CLZ Comics is a paid subscription app, costing US $1.99 per month or US $19.99 per year. Use the free 7-day trial to try all of the app's features and online services! OPTIONAL ADD-ON: : Get comic values from CovrPrice at US $90 extra per year. == Catalog your comics by scanning their covers == To add a comic to the app, just take a picture of the cover with the built-in "Cover Scanner". The app will recognize which comic it is and then automatically provides issue details, cover art, creator & character lists, including key comic information, like first appearances. Alternatively, add comics by scanning their barcodes or just find a series by title and checkbox the issues you own. == Edit all fields == Modify all automatically provided details from CLZ Core, like the series, issue number, variant description, release/cover dates, plot descriptions, creator and character listings etc.. you can even upload your own cover art (front and back!). Add personal details like storage box, grade, purchase date / price / store, notes, etc.. Create your own Custom Fields so that you can catalog information for which the app does not have a built-in data field. == Create multiple collections == Collections will appear as Excel-like tabs at the bottom of your screen. E.g. for different people, to separate physical from digital comics, to keep track of comics you sold or have for sale, etc... == Optional add-on: get comic values from CovrPrice == Optional in-app purchase, at US $90 per year. Get accurate and up-to-date comic values from CovrPrice, for both raw and slabbed comics. == CLZ Cloud storage == Sync your data to the CLZ Cloud, to: * always have an online backup of your comic tracker database. * sync your comic library between multiple devices * view and share your comic collection online = 24/7 customer support == We are always ready to help or to answer your questions, 7 days a week. Just use "Contact Support" or "CLZ Club forum" from the menu. == About CLZ == CLZ has been developing collection database software since 1996. Located in Amsterdam, the Netherlands, the CLZ team now consists of 12 guys and one gal. We're always working to bring you regular updates for the apps and software, and to keep our Core online databases up-to-date with all weekly NCBD releases. Our other CLZ apps: * CLZ Movies, for cataloging your DVDs, Blu-rays and 4K UHDs * CLZ Books, for organizing your book collection by ISBN * CLZ Music, for creating a database of your CDs and vinyl records * CLZ Games, for making a database of your video game collection == What our users say == * "So far, I've scanned over 20,000 comics and still going." * "The annual charge is completely worth it." * "Not only can you track your current comic collection with specific versions (covers, reprints, ext.), but also what you are missing and/or want." " It’s very easy to enter to your comics, either by series or by scanning the barcode." * "Great comic book tracking app and an awesome customer service staff." * "The barcode reader feature is fantastic!" ABOUT AUTO-RENEWABLE SUBSCRIPTIONS * The payment will be charged to your iTunes Account when you confirm the purchase. * The subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. * Your account will be charged for renewal within 24-hours prior to the end of the current period. Automatic renewals will cost the same price you were originally charged for the subscription. * You can manage your subscriptions and turn off auto-renewal by going to your Account Settings on the App Store after purchase. End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

shelf

Organize your physical movie collection with this beautifully designed app. Track films by format, view rich details, and gain insights with collection statistics. Backup and import your library with ease.

Highlights
  • Digital movie shelf display
  • Sort and filter by criteria
  • Track multiple film formats
  • View rich film details
  • Collection statistics
  • Backup and import functionality
Features
Read full description

shelf is your personal movie library on iPhone, iPad, and Mac, helping you track the films you own in different formats through a beautifully crafted experience. For everyone who's passionate about movies, keeping track of your library shouldn't feel like work. shelf steps in as your elegantly designed physical media tracker, helping you organise your entire film shelf in one visually stunning virtual space. Your Film Collection, Beautifully Displayed: Log your movie collection into a stunning digital shelf. Browse your films in an elegant grid view that showcases poster artwork, or switch to a detailed list view when you need more information at a glance. The customisation features also let you pick your favourite poster or background to display your films exactly like you want them. Smart Organisation: Display your shelf exactly how you want it. Sort and filter your movies by any criteria that matters to you—be it alphabetical, release years or formats. shelf's intuitive interface makes reorganising your collection feel natural and effortless. Format Tracking: Whether you're a dedicated 4K collector or mixing physical and digital, shelf helps you track exactly how you own each film. Add movies to your collection in 4K Blu-ray, standard Blu-ray, DVD, or digital formats. Never accidentally buy the same movie twice in the same format again. Rich Film Details: Dive deeper into your collection with comprehensive information about each film. Discover or rediscover details about directors, cast members, ratings, and runtimes at in a clean and readable format. Collection Statistics: Understand your film collection like never before with shelf's beautiful statistics view. Explore your average film ratings, total collection size, most-collected directors, and other fascinating insights about your carefully curated library. Backup and Transfer: Your collection is precious, and shelf keeps it safe. Easily backup your entire library for safekeeping or seamlessly transfer it to a new device. No more losing your app data when upgrading your phone, and no account needed! Already tracking your collection elsewhere? Bring it into shelf by importing from a .csv file. I hope you enjoy using the shelf app as much as I enjoyed making it!

Screenshots

CLZ Comics collection database4 screens
shelf4 screens

Verdict

The call

The clearest difference is in-app purchases: shelf at none against CLZ Comics collection database's 4. CLZ Comics collection database's advantage is rating (4.9 vs 4.4) and update cadence (every 11 days vs every 4 months). On price, review sentiment and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CLZ Comics collection database sells 4 in-app purchases, starting at $1.99 per month. shelf asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CLZ Comics collection database holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: CLZ Comics collection database has 15K ratings behind it against 29, so its average is the more settled of the two. Written reviews split almost evenly too, at 92% and 91% positive.

UpkeepUpdate frequency

CLZ Comics collection database ships an update every 11 days, shelf every 4 months. The most recent releases landed on November 10, 2026 and October 30, 2026 respectively.

Scorecard8 real differences · 3 level
CLZ Comics collection database versus shelf: the parameters behind the verdict, then further details
ParameterCLZ Comics collection databaseshelf
PriceFreeFree
Rating4.9 (15K ratings) — better4.4 (29 ratings)
Positive reviews91.5% of reviews — better90.6% of reviews
Number of ratings15K — better29
Update frequencyEvery 11 days — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
Best chart rank#190 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.6
Further details — not scored
Size31 MB7 MB
Age rating4+4+
DeveloperCLZShortcut Studios

Customer experience

CLZ Comics collection database

All ratings15,039 ratings
Positive97.7%
Neutral1.3%
Negative1.0%
Written reviews638 reviews
Positive91.5%
Neutral2.2%
Negative6.3%

shelf

All ratings17 ratings
Positive94.1%
Neutral5.9%
Negative0.0%
Written reviews32 reviews
Positive90.6%
Neutral3.1%
Negative6.3%

Bugs and requests

CLZ Comics collection database

Reported bugs

3 issues
  • Barcode scanning issues on newer devices
  • Syncing problems between mobile and desktop versions
  • Occasional data loss or corruption

Requested features

4 requests
  • Ability to manually add/edit comic details
  • Integration with comic pricing/valuation services
  • More customization options for collection organization
  • Improved pull list and new release tracking

shelf

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

CLZ Comics collection database

Subscriptions4
  • CLZ Comics (Pay Monthly)7 Days trial$1.991 Month
  • CovrPrice Premium (monthly)$8.991 Month
  • CLZ Comics (Pay Yearly)7 Days trial$19.991 Year
Show 1 more
  • CovrPrice Premium (yearly)$89.991 Year
None

shelf

No in-app purchases

Questions

Is CLZ Comics collection database free?
CLZ Comics collection database is free to download, with in-app purchases available.
Is shelf free?
shelf is free to download, with no in-app purchases.
Which has better reviews, CLZ Comics collection database or shelf?
CLZ Comics collection database is rated higher. CLZ Comics collection database averages 4.9 out of 5 from 15K ratings, while shelf averages 4.4 from 29 ratings.
Do CLZ Comics collection database or shelf have ads?
Neither CLZ Comics collection database nor shelf shows ads.
Which is updated more often, CLZ Comics collection database or shelf?
CLZ Comics collection database ships an update every 11 days, and shelf every 4 months. Most recently, CLZ Comics collection database was updated on November 10, 2026 and shelf on October 30, 2026.

Other comparisons