QuickAddons lets you show relevant add-on products directly on your product pages. Customers can select extras with quantity selectors and add them to cart without leaving the page. Assign add-ons to specific products, collections, or all products globally. Fully customize the widget colors and fonts to match your brand. Track performance with built-in analytics including clicks, add-to-carts, and revenue. Works with all Shopify themes. No coding required.