King Checkout Validation Shopify app icon

King Checkout Validation

by Gordon Kihn

Sales channelsFinding productsSelling productsOrders and shipping

Validates cart, address, customer info. Implements VAT, house number, apartment checks, length checks, smart matching. reduces returns. Defines shopping future.

View on Shopify App StoreFree Trial Available
5.0

Based on 15 reviews

Starting Price$4.99
Reviews15
Popularity Score32

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Key Features

Block invalid checkouts with real-time validation checks
Auto-detect missing house/apartment numbers, block Post office (PO) Box address
Validate fields base on keywords and regular express
Block non-Latin chars & enforce field limits
Customize validation rules based on combinations of order amount, weight, etc

King Checkout Validation Screenshots

King Checkout Validation Shopify app screenshot 1 - Sales channels interface
King Checkout Validation Shopify app screenshot 2 - Sales channels interface
King Checkout Validation Shopify app screenshot 3 - Sales channels interface
King Checkout Validation Shopify app screenshot 4 - Sales channels interface
King Checkout Validation Shopify app screenshot 5 - Sales channels interface
King Checkout Validation Shopify app screenshot 6 - Sales channels interface

Alternatives & Competitors

Compare King Checkout Validation with the best sales channels apps for Shopify

Among sales channels apps, King Checkout Validation has 15 reviews and a 5.0★ rating. Top alternatives include Judge.me Product Reviews App, Klaviyo Reviews, POWR Sales Popup, Email Pop up.

AppRatingPricing
King Checkout Validation
King Checkout Validation
Gordon Kihn
Current
5.0Trial
Judge.me Product Reviews App
Judge.me Product Reviews App
Judge.me
5.0Trial
Klaviyo Reviews
Klaviyo Reviews
Klaviyo
4.8Free
POWR Sales Popup, Email Pop up
POWR Sales Popup, Email Pop up
POWR.io
4.7Free
POWR Contact Form Builder
POWR Contact Form Builder
POWR.io
4.7Free
Judge.me Ali Reviews Importer
Judge.me Ali Reviews Importer
Judge.me
4.8Paid
Consentmo GDPR Compliance
Consentmo GDPR Compliance
Consentmo
5.0Trial
Hextom: Free Shipping Bar
Hextom: Free Shipping Bar
Hextom
4.9Trial
Track123 Order Tracking
Track123 Order Tracking
Track123
4.9Trial
Showing 8 alternatives in Sales channelsCompare more apps →

For sales apps, look for upselling features, conversion optimization, and ease of setup.

Frequently Asked Questions about King Checkout Validation

What is King Checkout Validation and what does it do?

King Checkout Validation is a Shopify app developed by Gordon Kihn that helps merchants with sales channels. Validates cart, address, customer info. Implements VAT, house number, apartment checks, length checks, smart matching. reduces returns. Defines shopping future.It's rated 5.0 stars based on 15 merchant reviews on the Shopify App Store.

How much does King Checkout Validation cost?

King Checkout Validation offers a free trial so you can test the app before committing. Pricing starts at $4.99. Always check the official Shopify App Store listing for the most up-to-date pricing information.

Is King Checkout Validation good? What do merchants say?

King Checkout Validation has a highly positive reputation with 15 reviews and an average rating of 5.0 stars. Compare it with alternatives above to find the best fit for your store.

What are the best alternatives to King Checkout Validation?

Top alternatives to King Checkout Validation include Judge.me Product Reviews App, Klaviyo Reviews, POWR Sales Popup, Email Pop up. These apps offer similar sales channels functionality. Compare features, pricing, and reviews above to choose the best app for your Shopify store.

How do I install King Checkout Validation on my Shopify store?

To install King Checkout Validation, visit the official Shopify App Store listing by clicking "View on App Store" below. Click "Add app" and follow the prompts to connect it to your Shopify store. Most apps require store owner permissions and may need configuration after installation. Take advantage of the free trial to test the app first.

About King Checkout Validation for Shopify

King Checkout Validation is a sales channels app available on the Shopify App Store, developed by Gordon Kihn. With 15 merchant reviews and a 5.0-star rating, it's a popular option in its category for Shopify store owners.

This app falls under the Sales channels, Finding products and Selling products categories on Shopify, helping merchants enhance their sales performance.

Why Use Sales channels Apps?

Sales and conversion apps help Shopify merchants increase revenue by optimizing product pages, checkout flows, upselling, and cross-selling. These tools can significantly boost average order value and conversion rates.

View on App StoreBrowse More Apps

King Checkout Validation Shopify App by Gordon Kihn • Sales channels • Finding products • 5.0★ (15 reviews) • Updated 5/9/2026

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