With WinApps you do the bulk of the setup manually, and there’s no cohesive interface to bring it all together. There’s a basic TUI, a taskbar widget, and some CLI commands for you to play with.
WinBoat does all the setup once you have the pre-requisites installed, displays everything worth seeing in a neat interface for you, and acts like a complete experience. No need to mess with configuration files, no need to memorize a dozen CLI commands, it just works.
From their FAQ
for the record, it doesn’t “just work”. After setting up the prerequisites, it failed on my first attempt create the docker container.