Gordon Kihn

Overview

Gordon Kihn sells Shopify apps under the Get All Tool brand: LinkedOption Combined Listings, King Checkout Validation and King Checkout Rules. They let merchants link separate products as variant-like options, validate checkout details, and hide, rename or reorder shipping and payment methods.

For Shopify brands

• ●Link separate products into one option selector with swatches, while each product keeps its own URL and product data.
• ●Check cart, address and customer details at checkout, including VAT, apartment detail and field length checks.
• ●Hide, rename and reorder shipping and payment methods based on cart total, quantity, products and customer details.

How it works

Merchants install the apps from the Shopify App Store. In LinkedOption, they create product groups for related products and can manage groups at scale with import/export or automation. In King Checkout Rules, they create rules based on conditions.

Built for

Shopify merchants of any plan, including those with large catalogs of many colors, sizes, materials or product configurations.

Pricing

LinkedOption has a free plan (3 product groups) and paid plans at $9.99, $19.99 and $39.99 per month. King Checkout Rules has a free plan for development stores, plus $4.99 and $9.99 per month plans.

Products

• ●LinkedOption Combined Listings Links separate products as variants with color and image swatches on product pages and cards.
• ●King Checkout Validation Verifies cart, address and customer details at checkout using VAT, field length and keyword/regex checks.
• ●King Checkout Rules Hides, renames and reorders shipping and payment methods by conditions; offers shipping discounts.

Integrations

Buyer notes

• LinkedOption works on any Shopify plan.
• LinkedOption does not change Shopify's native variant limits; it groups separate products instead.
• LinkedOption API-based management of product groups is on the $39.99 Premium plan.
• King Checkout Rules free plan covers development stores and rules in test status only.

From Gordon Kihn's own site and Shopify App Store listings, as of 2026-10-30.

Among Shopify brands over $5M

On the Shopify App Store

• LinkedOption Combined Listings

  ★ 5.0 · 145 reviews
  Built for ShopifyFree planPaid from $9.99/moOn 0.5% of brands over $5MLaunched 2022Custom products - Other

  Combined listings for any Shopify plan: link separate products as variants, show color and image swatches on product pages and cards, keep SEO URLs.

  Pricing

  Free

  Free

  • ✓3 product groups
  • ✓Create single-option product groups
  • ✓Translations

  Basic

  $9.99/month

  or $99.90/year and save 17%

  • ✓100 product groups
  • ✓Create single-option product groups
  • ✓Import / export product groups
  • ✓Translations
  • +3 more

  7-day free trial

  Advanced

  $19.99/month

  or $199.90/year and save 17%

  • ✓500 product groups
  • ✓All Basic features
  • ✓Create multi-options product groups
  • ✓Create subcategory product groups
  • +3 more

  7-day free trial

  Premium

  $39.99/month

  or $399.90/year and save 17%

  • ✓3000 product groups
  • ✓All Advanced features
  • ✓Conditional swatch image
  • ✓Manage product groups via API

  7-day free trial

Ratings, reviews, plans, prices and descriptions as the Shopify App Store lists them. how we count.

Often used with Gordon Kihn

What its brands run more often than Shopify brands over $5M do overall.

• Frequently Bought Together CBB51.8% of its brands · 11x average
• Okendo62.7% of its brands · 5.5x average
• GOAFFPRO21.7% of its brands · 3x average
• Preorder13.3% of its brands · 2.9x average
• Upsell & Cross Sell — Selleasy16.9% of its brands · 2.6x average