TierUp adds quantity tier discounts to your store. Set the discount for each quantity step, scope tiers to collections, products or variants, and show customers a clean tier table on the product page plus a progress nudge in the cart. Powered by Shopify Functions — discounts apply automatically at checkout, no duplicate discount codes. Order-level analytics summarize tiered order performance without storing any personal customer data.

• Quantity tiers with automatic checkout discounts via Shopify Functions
• Collection, product and variant targeting with exclusions
• Bundles, BOGO and gift-at-threshold rules for advanced offers
• Product-page tier table and cart progress nudge in 7 languages
• Privacy-first analytics with no personal customer data stored