Comparison

CLZ Comics collection database vs Robograder

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

Easily catalog your comic book collection by scanning covers or barcodes. Automatically retrieves issue details, creator lists, and cover art. Organize into multiple collections and track personal data like purchase price and storage location.

Highlights
  • Scan comic covers for automatic recognition
  • Barcode scanning for modern comics
  • Automatic issue details and cover art retrieval
  • Edit all comic details and add personal notes
  • Create multiple, organized collections
  • Optional comic value estimates
  • Cloud backup and multi-device sync
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

Robograder

This app uses your phone's camera to analyze comic books and provide a condition grade. It breaks down the grade by specific defects like spine stress and corner wear, helping you make informed decisions about buying, selling, or cataloging your collection.

Highlights
  • Photo-based grading
  • Detailed defect breakdown
  • Component scores (front, back, spine, interior)
  • Page quality assessment
  • Collection building and organization
  • Pay-as-you-go credit packs
Features
Read full description

Robograder grades your comic books from photos in seconds. Snap a few shots of a comic — front, back, spine, interior — and Robograder returns a condition grade on a familiar 0.5–9.9 scale, plus a detailed breakdown of exactly what it sees: spine stress, corner wear, surface defects, page quality, and more, defined by region. Whether you're buying, selling, or just cataloging your collection, Robograder gives you a fast, consistent second opinion before you commit to a costly professional submission. FEATURES • Photo-based grading — no special equipment, just your phone • Component breakdown — separate scores for front, back, spine, and interior • Specific defect notes — know what's affecting the grade and where • Page quality assessment • Build your collection — save and organize every book you grade • Simple credit packs — pay only for the assessments you use, NO SUBSCRIPTIONS Robograder is an independent grading tool and is not affiliated with any professional encapsulation service. Grades are estimates to help you make informed decisions.

Screenshots

CLZ Comics collection database4 screens
Robograder4 screens

Verdict

The call

The clearest difference is rating: CLZ Comics collection database at 4.9 against Robograder's 3.8. CLZ Comics collection database also leads on ratings volume (15K vs 15) and review sentiment (91% vs 67%). Robograder's advantage is in-app purchases (none vs 4). On price, update cadence, ads and device support 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. Robograder 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 3.8. That said, the two scores are not equally well evidenced: CLZ Comics collection database has 15K ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 91% of CLZ Comics collection database's written reviews are positive against 67% of Robograder's.

UpkeepUpdate frequency

CLZ Comics collection database ships an update every 11 days, Robograder weekly. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

Scorecard6 real differences · 5 level
CLZ Comics collection database versus Robograder: the parameters behind the verdict, then further details
ParameterCLZ Comics collection databaseRobograder
PriceFreeFree
Rating4.9 (15K ratings) — better3.8 (15 ratings)
Positive reviews91.2% of reviews — better66.7% of reviews
Number of ratings15K — better15
Update frequencyEvery 11 daysWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree with in-app purchases — better
Best chart rank#167 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size31 MB19 MB
Age rating4+4+
DeveloperCLZRobograder LLC

Customer experience

CLZ Comics collection database

All ratings14,879 ratings
Positive97.7%
Neutral1.3%
Negative1.0%
Written reviews616 reviews
Positive91.2%
Neutral2.3%
Negative6.5%

Robograder

All ratings15 ratings
Positive73.3%
Neutral0.0%
Negative26.7%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

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

Robograder

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

Robograder

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 Robograder free?
Robograder is free to download, with no in-app purchases.
Which has better reviews, CLZ Comics collection database or Robograder?
CLZ Comics collection database is rated higher. CLZ Comics collection database averages 4.9 out of 5 from 15K ratings, while Robograder averages 3.8 from 15 ratings.
Do CLZ Comics collection database or Robograder have ads?
Neither CLZ Comics collection database nor Robograder shows ads.
Which is updated more often, CLZ Comics collection database or Robograder?
CLZ Comics collection database ships an update every 11 days, and Robograder weekly. Most recently, CLZ Comics collection database was updated on October 14, 2026 and Robograder on October 1, 2026.

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