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

• Claude AI-powered sales assistant integrated into your store
• Photo upload for personalized product recommendations
• Instant catalog navigation for large product ranges
• Complementary product suggestions after every add-to-cart
• Answers customer questions to help with confident purchasing

Verdict on UpSell

UpSell AI uses Claude (Anthropic's AI) as a sales assistant on your store — a novel approach at just $7/month. Note that you need your own Claude API key, adding variable costs. With zero reviews and requiring external API setup, it is best for technically comfortable merchants willing to experiment.