TierForge lets you create tiered bundle pricing where customers pay less per item when they buy more. Select a collection, set your price tiers, and discounts apply automatically at checkout. The app uses native Shopify Functions so discounts work reliably without theme modifications. Products sync automatically when you update collections, and you can exclude specific variants from bundles. Perfect for stores selling items like car fresheners, stickers, candles, or any mix-and-match products.