Docker Hub vs Quay.io: What are the differences?
Developers describe Docker Hub as "Build and Ship any Application Anywhere". It is the world's easiest way to create, manage, and deliver your teams' container applications. It is the perfect home for your teams' applications. On the other hand, Quay.io is detailed as "Secure hosting for private Docker repositories". Simply upload your Dockerfile (and any additional files it needs) and we'll build your Dockerfile into an image and push it to your repository.
Docker Hub can be classified as a tool in the "Container Tools" category, while Quay.io is grouped under "Docker Registry".