What problem does it solve? Growing average order value without paid traffic requires well-placed product recommendations, but choosing the right app, placement, and pricing strategy per platform is confusing and mistakes at checkout can increase cart abandonment. ## Core Features & Use Cases - Platform-Specific Setup Guides: Step-by-step configuration for Shopify (Rebuy, Frequently Bought Together), WooCommerce (native linked products, YITH), BigCommerce (Also Bought), and headless storefronts (Rebuy API, Recombee). - Placement and Pricing Strategy: Decision tables for PDP, cart, checkout, and post-purchase placements with expected AOV lift, conversion risk, bundle discount ranges, and upsell price guardrails. - Custom Affinity Computation: TypeScript example for computing co-purchase product affinity from order history when no third-party tool is available. - Use Case: A Shopify merchant with below-benchmark AOV installs Rebuy, adds a Frequently Bought Together widget on product pages and Smart Cart recommendations, then tracks attach rate and AOV lift weekly. ## Quick Start Set up cross-sell recommendations on my Shopify store's product and cart pages using the best app for my catalog size.