BST Frequently Bought Together vs Pumper Bundles Quantity Breaks: Shopify App Comparison (2026)

Key Features

• AI-powered product recommendations based on consumer purchase behavior
• Amazon-style "frequently bought together" widget design
• Mobile-first, fully customizable widget compatible with most themes
• Bundle discount options with percentage or fixed amount configurations
• In-depth analytics dashboard tracking clicks, conversions, and revenue

Verdict on BST

BST is the best option if your primary cross-sell strategy is Amazon-style "frequently bought together" recommendations. The AI-powered suggestions are genuinely smart, and the mobile-first design ensures bundles look great on every device. The free plan is limited to 1 manual bundle, but the Core plan unlocks AI recommendations at a fair price. If you want focused cross-sell rather than a full bundle builder, BST delivers.

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.