MemberPress is a powerful WordPress plugin designed for creating and managing membership sites. It allows website owners to restrict content, create subscription plans, and handle payments through popular gateways. MemberPress offers advanced features such as automated email notifications, member management, access rules, and content protection. It integrates with third-party tools for marketing, affiliate programs, and more. The plugin is available in premium versions, with no free option. Some third-party platforms may provide MemberPress under the GPL (General Public License), but these versions typically do not include official support or updates from the original developers.