Upzella: Bundle Builder

Upzella Bundle Builder adds a build-your-own-bundle page to your store. Customers mix and match the products you choose and unlock tiered quantity discounts as the bundle grows, with a live progress bar that nudges bigger baskets. Run BOGO (buy X get Y) offers and optional gift wrap too, and source bundles from products, a collection, or tags. Discounts are real Shopify automatic discounts at checkout — no codes, Shop Pay ready. Added as a native theme app block: no code, zero speed impact.