Docker EE and Docker CE are two different editions of the Docker platform.
Docker EE, or Docker Enterprise Edition, is designed for enterprise development and IT teams who build, ship, and run business-critical applications in production at scale. It offers commercial support, validated design across multiple platforms, application security with Docker Content Trust, as well as integration into third-party systems for logging, monitoring, etc. It also offers fine-grained access control, Active Directory/LDAP integration, and certified Docker Containers and Plugins.
Docker CE, or Docker Community Edition, on the other hand, is ideal for individual developers and small teams looking to get started with Docker and experimenting with container-based apps. Docker CE is a free-to-use, community-supported version of Docker. It does not come with commercial support and is updated with new release approx every 3 months.
Therefore, the main difference between Docker EE and Docker CE boils down to the level of support, security features, and the scale of the operations intended to be run on the platform.