When comparing Quay.io vs Google Container Registry, the Slant community recommends Google Container Registry for most people. In the question“What are the best docker image private registries?” Google Container Registry is ranked 8th while Quay.io is ranked 9th. The most important reason people chose Google Container Registry is:
Since it's hosted on Google Cloud Platform then it's very reliable in both the uptime and the security.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Web based UI
Quay.io has a beutiful and easy to understand web based UI.
Pro Most prominent alternative to Docker Hub
Quay was started by two Google engineers to serve as an alternative to Docker Hub. It was later acquired by CoreOS.
Pro Reliable and consistent uptime
Since it's hosted on Google Cloud Platform then it's very reliable in both the uptime and the security.
Pro Charged only for the storage
Users are charged only for the Google Cloud Storage space that they are occupying and not for any additional services.
Cons
Con Acquired company
CoreOS bought Quay and redirected their energies to the CoreOS Enterprise Registry, so this product might not be here for the duration.