Key Features

• Pre-purchase cross-sell offers shown on product pages as Amazon-style "frequently bought together" bundles
• Post-purchase one-click upsell page with dedicated thank-you page funnels
• Cart upsell funnel with add-ons and product recommendations based on cart contents
• Multi-language and multi-currency support for international stores
• Customizable widget styling that auto-matches your store theme with no code changes required

Verdict on Upsell

Selleasy is one of the most well-rounded upsell apps on Shopify, offering pre-purchase, in-cart, and post-purchase funnels in a single install. Its generous free tier makes it ideal for new stores, while the paid plans remain affordable even for high-volume merchants. The app is easy to set up and integrates cleanly with most themes, making it a strong default choice for any store looking to grow AOV.

Key Features

• Product bundles and free gifts with mix-and-match options and auto-applied bundle logic
• Cart drawer and cart upsell functionality that works across all themes and third-party apps
• Post-purchase upsells and customizable thank-you page offers
• Volume discounts, quantity breaks, and BOGO deal builder
• Bundle builder with fully customizable styling and layout options

Verdict on Moon

Moon Bundles is one of the best-value bundle apps on Shopify, combining bundles, cart drawer upsells, post-purchase offers, and volume discounts into a single install. The generous free tier and Built for Shopify badge make it a safe bet for any merchant. Its multi-language support and theme-wide compatibility stand out among competitors. The revenue cap pricing model is transparent — you only upgrade when your bundles are actually making money.