Docker currently separates its product lines into two segments. There is the Community Edition (CE) which is closed source yet completely free, and then there is the Enterprise Edition (EE) which is also a closed source and needs to be licensed on a yearly basis. The enterprise products are backed by 24 x 7 support and are supported with bug fixes much longer than their CE counterparts.
Part of the Docker community edition are products such as the Docker Toolbox, Docker for Mac, and Docker for Windows. All these three products are mainly targeting developers.
Docker for Mac and Docker for Windows are easy-to-install desktop applications that can be used to build, debug, and test Dockerized applications or services on a Mac or on Windows. Docker for Mac and Docker for Windows are complete development environments which deeply integrated with their respective hypervisor framework, networking, and filesystem. These tools are the fastest and most reliable way to run Docker on a Mac or on Windows.
Under the umbrella of the CE, there are also two products that are more geared towards operations engineers. Those products are Docker for Azure and Docker for AWS.
For example, with Docker for Azure, which is a native Azure application, you can set up Docker in a few clicks, optimized for and integrated to the underlying Azure Infrastructure as a Service (IaaS) services. It helps operations engineers to accelerate time to productivity in building and running Docker applications in Azure.
Docker for AWS works very similar but for Amazon's cloud.
The Docker EE consists of the two products Universal Control Plane (UCP) and Docker Trusted Registry (DTR) that both run on top of Docker Swarm. Both are Swarm applications. Docker EE builds on top of the upstream components of the Moby project and adds enterprise-grade features such as role-based access control (RBAC), multi tenancy, mixed clusters of Docker Swarm and Kubernetes, web-based UI, and content trust, as well as image scanning on top of it.