App Service
In plain terms
Azure's managed platform for hosting web apps and APIs.
Going deeper
App Service runs web applications and APIs without managing servers, handling scaling, patching, and deployment. It's Azure's PaaS for web workloads.
Under the hood
Supports many languages with built-in CI/CD and scaling; less control than VMs/containers.
Examples
Web apps, REST APIs, .NET/Node hosting, auto-scaling, Azure PaaS.
Think of it like...
Like renting a fully-serviced storefront where upkeep is handled for you.