YiThemes - YITH WooCommerce Product Add-ons v1.5.26

Add advanced paid or free options in your products page using field types including radio buttons, checkboxes, drop-down fields, custom text inputs and more. How you can benefit from it: You will sell customizable products to your users aiming your business at another market niche; You will increase the average value of orders by offering users extra services in which they are probably interested.