WishList Member is a WordPress plugin so it can be installed and used on a hosted WordPress powered site. A copy of WordPress can be downloaded from WordPress.org
Note: WordPress.com is a different environment.
WordPress.com offers packages for sites that do not allow for plugins or themes to be installed so WishList Member cannot be used on these types of sites.
WordPress.com also offers a Business Plan Package which does allow for the installation of 3rd party plugins and themes. WishList Member was not specifically developed for this environment so we cannot say all the intended functionality will work on a site using the WordPress.com Business Plan Package. It is recommended WishList Member be used on a hosted WordPress powered site.
Note: We use WP Engine for our WordPress hosted sites and highly recommend them. We’ve teamed up with them to provide a 20% discount on the first month of new hosting accounts with them. You can click here to get the coupon code for the discount.
(Please be aware this is our affiliate link and we will receive a referral fee from WP Engine if you open a new account. You will not be charged any additional fees)