The moment right after checkout is one of the most overlooked opportunities to grow average order value (AOV). A post-purchase upsell app shows a one-click offer on the post-purchase or thank-you page, so customers can add to their order without re-entering payment details — and without adding any friction to checkout itself. This guide ranks the 10 best Shopify post-purchase upsell apps for 2026, based on features, pricing, ratings, and real merchant feedback. New to the tactic? Start with our guides to what upselling is and how to upsell on Shopify.
One thing makes post-purchase upsells especially accessible: they work on every Shopify plan, not just Shopify Plus. (Some of these apps also offer in-checkout upsells, which do require Shopify Plus.) The main limitation to know is that post-purchase offers only appear for orders paid with supported payment methods, so a few express or third-party checkouts won't see them.
Our top pick, AfterSell (now part of Rokt), is the most established option, covering one-click post-purchase upsells, thank-you-page customization, and A/B testing at scale. We placed Candy Rack at #2 because it pairs a complete all-in-one upsell suite — across the product page, cart, checkout, and post-purchase — with more accessible pricing, making it the best value for most stores. (Full disclosure: Candy Rack is built by our team at Digismoothie.) From there, the list runs from budget-friendly and free options to AI-driven automation, so there's a fit for every store size and stack.
