Apollo vs Pivotal Web Services (PWS): What are the differences?
Developers describe Apollo as "GraphQL server for Express, Connect, Hapi, Koa and more". Build a universal GraphQL API on top of your existing REST APIs, so you can ship new application features fast without waiting on backend changes. On the other hand, Pivotal Web Services (PWS) is detailed as "Deploy, Update and Scale Applications On-Demand". Pivotal Web Services is a public cloud version of the widely supported Open Source Cloud Foundry PaaS. PWS makes is an ideal platform for the rapid deployment, easy scaling and binding of third party apps for Java, PHP, Ruby, GO and Python apps. Focus on apps not dev ops.
Apollo and Pivotal Web Services (PWS) can be categorized as "Platform as a Service" tools.
Apollo is an open source tool with 7.53K GitHub stars and 935 GitHub forks. Here's a link to Apollo's open source repository on GitHub.