Sumzy is an AI-powered review summarization plugin for WooCommerce and Shopify that condenses product reviews into a single clear summary displayed on each product page. It handles the AI processing itself, requiring no external API key or AI account from the store owner. Summaries are stored directly in the store's database, so product pages load without any live AI call at runtime. It supports 43 languages, including RTL and CJK scripts, and offers a per-shopper language feature via WPML, Polylang, or Shopify Markets on higher-tier plans. An admin dashboard provides sentiment and theme analysis across the entire review catalogue.