Multilingual Comments is an add-on for WPML / WooCommerce. This plugin makes it possible via its own plugin settings, to show – comments on blog posts in all languages – product reviews in all languages (also the average rating will be calculated as 1 total) For example, if a WooCommerce product has – 4 English reviews – 7 French reviews – 5 Dutch reviews the product will have 16 reviews, no matter which language is selected.
