BundleStack helps merchants order value with quantity-break promotions shoppers understand at a glance. Get tiered quantity breaks, a product picker, automatic Shopify discount sync, a theme widget, store health checks, and clean uninstall. Set products and quantity tiers, activate, and add the theme block. Discounts apply at checkout. Built for consumables, supplements, coffee, skincare, and apparel.

• Quantity-break offers with automatic Shopify discount sync
• Theme widget for product pages
• Product picker — no manual IDs
• Store health monitor with one-click fixes
• Clean uninstall removes discounts and data