Rebuy Engine

Rebuy Engine is a personalization and merchandising platform built for Shopify and Shopify Plus merchants, founded in 2017 and headquartered in Scottsdale, Arizona. The company was co-founded by John Erck, who serves as CEO, with a focus on enabling online retailers to increase revenue per visitor through automated product recommendations and targeted offers.

Rebuy's platform integrates directly into Shopify storefronts and provides tools including smart cart functionality, post-purchase upsell pages, checkout upsells, product recommendation widgets, and re-order landing pages. The platform uses rules-based and machine learning-driven logic to surface relevant products at various points in the customer journey. It is used primarily by direct-to-consumer brands operating on Shopify.

Rebuy has operated without disclosed external venture funding and has grown through the Shopify app ecosystem, where it maintains a presence on the Shopify App Store. The company has expanded its team to the 51–200 employee range as of recent years and has positioned itself within the broader Shopify partner ecosystem alongside complementary tools in email, loyalty, and subscription commerce.