Elastic Container Service - AWS service for running Docker containers without managing servers. Like having someone else manage your shipping containers while you focus on what's inside them.
A company uses ECS to run their web application containers, automatically scaling up during busy periods.
ECS is AWS’s managed container orchestration service. Azure Container Apps is a managed, serverless-style container platform for microservices. GKE and OKE are managed Kubernetes services; they provide Kubernetes APIs and ecosystem compatibility, while ECS uses AWS-native primitives (tasks/services) instead of Kubernetes.