Key Features

• Offer Free Gift & BOGO deals within Quantity Bundle Breaks
• Bundle Offer Upsell Through Discount by Each Unit, Percentage, or Flat Discount
• Create Bundle Offers or Quantity Break for Specific Products or Collections
• Measure the positive impact Pumper Bundles make on store revenue with analytics
• Fully customizable bundle upsell and Quantity Breaks to match store theme
• Cart drawer integration showing savings and encouraging quantity increases

Verdict on Pumper

Pumper Bundles is the go-to app for stores that rely on quantity-based pricing, volume discounts, and bundle deals. With 2,700+ reviews and a 4.9 rating, it has proven itself at scale. The free plan with up to $300 in extra revenue makes it accessible to new stores, while the Unlimited plan caps costs for high-volume merchants. Where Pumper truly shines is its breadth of integrations — it works with nearly every major cart drawer and page builder on Shopify. The trade-off is that it focuses purely on bundles and discounts, so you'll need a separate app for cart drawer upsells or post-purchase funnels.

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.