Universal AntiSpam plugin blocks spam comments and spam in WooCommerce. Free trial then $8 per year. No Spam No Google Penalties. No CAPTCHA, no questions, no animal counting, no math and no puzzles, no puzzles. CleanTalk works in the background and does not make users jump through hoops to submit a comment or complete a form. The plugin moves spam comments to SPAM folder or you can auto-delete comments. It filters spam submisssions for any type of forms Contact Form, Survey & Quiz Forms.”]
Source: https://wordpress.org/plugins/cleantalk-spam-protect/