WooCommerce License Manager is a WordPress plugin that allow you to easily sell license keys, pin codes, gift card or license your digital product with predefined or automatically generate license keys.
Demo https://codecanyon.net/item/woocommerce-license-manager/16636748
Downloadhttps://www.filecad.com/ib41/WooCommerce-License-Manager-v3.2.1.rar