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

• AI-powered bundle creation from product selections or collections
• A/B testing to optimize bundle configurations and pricing
• Quantity breaks and volume discounts with flexible percentage or fixed pricing
• Analytics dashboard tracking bundle revenue and performance metrics
• Brand-aligned customization with color adjustments and design options

Verdict on Ghost

Ghost is the go-to choice for data-driven merchants who want to optimize bundles through A/B testing. The AI-powered suggestions and built-in testing framework set it apart from competitors that rely on manual configuration. The free plan includes A/B testing and analytics — features that other apps charge for. It is still a newer app, but the Built for Shopify badge and multi-language support signal serious quality.