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All keywordsApp Store search keyword

checkout validation

24 Shopify apps rank for checkout validation in App Store search. Here they are in order, with what merchants think of each one and what it costs to start.

Rankings last updated 6 September 2026. Shopify stopped allowing its search page to be read on 6 September 2026, so the positions on this page are no longer refreshed. Everything else — each app's rating, review count and pricing — still comes from our daily crawl.

Market

36/100

Difficulty

24/100

Established rivals

9

Avg. rating, top 10

4.93★

Apps ranking for “checkout validation”

Positions from our own crawl of App Store search on 2026-08-25.

Where does your app rank for “checkout validation”?

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1BoomGate: Checkout Validation

BoomGate: Checkout Validation

AI-powered checkout validation, payment and delivery customization for Shopify. 70+ conditions, templates, import/export. Create rules in plain English.

4.946 reviews
2King Checkout Validation

King Checkout Validation

Block checkout with address validation and order limits. Check PO boxes, missing house numbers and VAT formats. Build custom checkout rules with clear errors.

520 reviews
3Cart Block: checkout validator

Cart Block: checkout validator

CartBlock blocks purchases and orders based on criteria like country, product quantity, customer profiles, discount code and more also with Captcha

4.725 reviews
4Payflow: COD & Checkout Rules

Payflow: COD & Checkout Rules

Add Cash on Delivery fees, customize payment or delivery methods, and create checkout validations using rules based on cart, customer, product, address and more

5115 reviews
5SMART Checkout Upsells & Rules

SMART Checkout Upsells & Rules

SMART Checkout Rules helps merchants control the checkout experience using flexible conditions. Validate checkout or hide, block, sort, or rename p...

5832 reviews
6Blockit: Checkout Rule

Blockit: Checkout Rule

Checkout validation for Shopify stores. Block P.O. boxes and prevent invalid orders, set order limits by product or amount, and reject misused discount codes.

58 reviews
7Ninja Address Validation

Ninja Address Validation

Shopify address validation app. Block missing house numbers, PO boxes, bad postal codes & special characters at checkout. Stop bad orders. Free plan available.

4.945 reviews
8Checkout Rules & Discounts

Checkout Rules & Discounts

Easily customize your Shopify checkout with advanced rules to validate checkout, hide, rename, or reorder payment rule and delivery methods, and offer discounts

585 reviews
9Blockify Checkout Customizer

Blockify Checkout Customizer

Boost revenue with dynamic checkout extensions. Stop losing customers right at the finish line.

4.9314 reviews
10Bony: Checkout Rules & COD

Bony: Checkout Rules & COD

Hide payment methods, rename the shipping methods, prevent unwanted orders with powerful conditions

4.926 reviews
11Kedra Checkout Rules & Upsells

Kedra Checkout Rules & Upsells

Checkout customization made easy: create rules with the AI assistant and 80+ conditions. Hide, rename or reorder payment and shipping methods. Vali...

4.8508 reviews
12Dibs – Preorders & Backorders

Dibs – Preorders & Backorders

Pre-order & backorder app for sold out & out-of-stock items. Preorder deposits, split payments, coming soon badges, presales, inventory tracking & reminders.

5149 reviews
13Locksmith

Locksmith

Access control for the Online Store channel. Lock any content; grant access with passcodes and more.

4.7308 reviews
14VOL Surcharge Fee & Extra Fees

VOL Surcharge Fee & Extra Fees

Charge product fees, payment fees, import duties, surcharges, customs fees and tariffs across cart, checkout, POS and draft orders with flexible rules for B2B.

595 reviews
15BlockCart: Checkout Validation

BlockCart: Checkout Validation

Block invalid Shopify orders with no-code cart and checkout rules. Set order limits, restrict products by ZIP code, enforce B2B rules, and show clear errors.

—— reviews
16SMART Functions Creator

SMART Functions Creator

Build advanced Shopify Functions for tiered discounts, BOGO, bundles, promos, volume discounts functions, payment customizations, delivery customiz...

5145 reviews
17RUBIX Cash On Delivery‑COD Fee

RUBIX Cash On Delivery‑COD Fee

Limit Cash on Delivery with Conditions: Set specific conditions for COD eligibility, such as a minimum order amount or a maximum purchase limit

4.943 reviews
18NovaPay Checkout Rules

NovaPay Checkout Rules

Create conditional rules for payment and shipping methods, discounts, and checkout validation using cart, customer, product, and location data.

4.86 reviews
19Simesy Checkout Rules

Simesy Checkout Rules

Maximize checkout conversion with powerful payment rules. Sort, rename and hide payment methods to offer your customers idea payment methods. Hide ...

4.943 reviews
20CartWisp: Checkout Validation

CartWisp: Checkout Validation

Prevent invalid orders with CartWisp Checkout Validation. Enforce MOQ, buyer eligibility, product restrictions, shipping controls, and payment rules.

—— reviews
21BM Bot blocker Country blocker

BM Bot blocker Country blocker

BM: Country Blocker IP Blocker helps merchants control who can access their store and prevent unwanted visitors before they place an order. Merchan...

5207 reviews
22Pareto ‑ Order Limits Quantity

Pareto ‑ Order Limits Quantity

Pareto lets you set order limits and a max quantity per customer on any product, so no one can bulk buy your drops, flash sales or freebies. Limit ...

4.9144 reviews
23Lockdown: Cart/Checkout Rules

Lockdown: Cart/Checkout Rules

Create checkout validation rules to block risky orders. Restrict by cart value, products, location, customer type, and more. Free Shopify app with no coding.

—— reviews
24Checkmate ‑ checkout validator

Checkmate ‑ checkout validator

Checkmate Pro allows stores to set conditions for cart and checkout validations without having to use any custom code. Using Checkmate Pro, Shopify...

—— reviews

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