Cart Block vs King Checkout Validation

Cart Block: checkout validator logo Cart Block: checkout validator vs King Checkout Validation logo King Checkout Validation

How Cart Block and King Checkout Validation compare on the Shopify App Store: rating, review count, pricing, the Built for Shopify badge, and where each one ranks in the store's organic search results. Every number is the App Store's own and is never edited.

Updated September 8, 2026 · App Store data

Maintained by Rankbase, built by a Shopify app developer

Cart Block vs King Checkout Validation at a glance

As of September 8, 2026, Cart Block is rated 4.9 stars from 21 reviews and King Checkout Validation is rated 5.0 stars from 20 reviews on the Shopify App Store.

  • Rating: King Checkout Validation has the higher rating, 5.0 stars against 4.9.
  • Reviews: Cart Block has more reviews, 21 against 20.
  • Pricing: Both list "Free plan available".
  • Built for Shopify: Both carry the Built for Shopify badge.
Cart Block and King Checkout Validation on the Shopify App Store, as of September 8, 2026: rating, review count, pricing label, the Built for Shopify badge, and the date each app's data was last read from the store.
Fact Cart Block King Checkout Validation
Tagline Block or validate orders in product, cart and checkout page Checkout & address validation for VAT, phone, and order limits
Rating ★ 4.9 ★ 5.0
Reviews 21 20
Pricing Free plan available Free plan available
Built for Shopify Built for Shopify Built for Shopify
Data as of September 8, 2026 September 8, 2026

Ratings, review counts, pricing labels and badges are read from each app's Shopify App Store search result card. Rankings are the store's organic results for the searches Rankbase tracks; sponsored results are excluded.

Where each app ranks in App Store search

Every Shopify App Store search Rankbase tracks where Cart Block or King Checkout Validation is in the top 10 today, with the position merchants see. Organic results only, across 3,620 tracked searches; sponsored placements never count.
App Store search Cart Block King Checkout Validation
Both apps rank · 1 search
Checkout Validation #3 #2
Only Cart Block ranks · 7 searches
Cart Block #1 not in top 10
Captcha #3 not in top 10
Cart Lock #3 not in top 10
Checkout Page #5 not in top 10
Kalodata #7 not in top 10
Blocky #8 not in top 10
Block #9 not in top 10
Only King Checkout Validation ranks · 11 searches
COD King not in top 10 #4
King not in top 10 #4
Phone not in top 10 #6
SEO King not in top 10 #7
Swatch Kings not in top 10 #7
VAT not in top 10 #7
Address Validation not in top 10 #8
Address Validator not in top 10 #8
Codice Fiscale not in top 10 #9
Swatch King not in top 10 #10
Wishlist King not in top 10 #10

In the App Store's organic search results, Cart Block ranks in the top 10 for 8 of the 3,620 searches we track and King Checkout Validation for 12. They share one search, "checkout validation", where King Checkout Validation ranks #2 and Cart Block #3.

Frequently asked questions

Is Cart Block or King Checkout Validation rated higher on the Shopify App Store?

King Checkout Validation has the higher rating, 5.0 stars against 4.9. Cart Block has more reviews, 21 against 20.

Which has more reviews, Cart Block or King Checkout Validation?

Cart Block has more reviews, 21 against 20.

Which ranks higher in Shopify App Store search, Cart Block or King Checkout Validation?

In the App Store's organic search results, Cart Block ranks in the top 10 for 8 of the 3,620 searches we track and King Checkout Validation for 12. They share one search, "checkout validation", where King Checkout Validation ranks #2 and Cart Block #3.

How is this comparison made?

Rankbase records the organic results merchants see when they search the Shopify App Store for 3,620 popular keywords, refreshed daily for published rankings and at least weekly for the rest. Each app's rating, review count, pricing label and Built for Shopify badge are taken from its App Store search result card, so they are exactly what merchants see; the date next to each app is the last time it appeared in any tracked top 10. Sponsored results are excluded, and nothing on this page is edited by hand, including for Rankbase's own apps.

More comparisons

Cart Block against other apps

King Checkout Validation against other apps

Rankbase paired these two apps on September 8, 2026, when both ranked in the top 3 for "checkout validation". The page stays as long as either app keeps ranking or the comparison keeps being read, and every number on it is refreshed from the App Store.

All app comparisons →   ·   Browse keyword rankings →

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Built by Craftshift

Rankbase is made by Craftshift, a Shopify Partner building apps for product images, variants, and bulk catalog work. We built Rankbase to track the App Store rankings of our own apps first, then opened it to other developers, and this directory grew out of that work. The rankings on these pages are Shopify's own organic search results; we never edit them, including for our own apps.

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