Upsellio enables merchants to easily create Buy One Get One, or any type of Buy X Get Y, discounted upsell, flash sale, and product bundle offers. It allows merchants to offer free gifts, and display them on their store in a popup or embedded style. With Upsellio's analytics section, merchants can track sales and measure the ROI and conversions. Upsellio can be used to show upsell offers on the cart page, product details page, collection page, homepage, or any page of the store, helping merchants to increase their store sales.