About this app
Sellio Product Options is an advanced Shopify product options app with unlimited variant options, custom fields, file upload, image/color swatches, font selector, and conditional logic. Supports dynamic pricing with formula-based, percentage, add-on, and character-based charges. Automatically change product images on selection and supports inventory management & tracking. Built on Shopify Functions for seamless upsell, cross-sell, and discount integrations.