WooCommerce has been adopted by over 380,000 online retailers. It is used by a number of high-traffic websites such as Small Press Expo. For the 3rd week of September 2015, Trends indicated that WooCommerce ran on 30% of e-commerce sites and millions of active installs.
WooCommerce has attracted significant popularity because the base product, in addition to many extensions and plugins, is free and open source. In addition, there are thousands of paid add-ons for fixed prices. Many Premium Themes now offer capability with Woocommerce as well as plugins that make a theme framework compatible.
Notable WooCommerce extensions include:
WooCommerce Bookings: Which allows users to sell blocks of time as appointments.
WooCommerce Memberships: which allows the user to restrict access to certain parts of their WordPress website, and sell access to these parts of the website.