Apache OpenWhisk vs RealtimeApp: What are the differences?
What is Apache OpenWhisk? A serverless, open-source cloud platform. Apache OpenWhisk (incubating) is a serverless, open source cloud platform that executes functions in response to events at any scale.
What is RealtimeApp? Deploy a Serverless Realtime App in Seconds. Deploy a Full-Stack Realtime App in seconds using Serverless Components. Just provide your frontend code (powered by the website component), and your backend code (powered by the socket component).
Apache OpenWhisk and RealtimeApp belong to "Serverless / Task Processing" category of the tech stack.
Apache OpenWhisk and RealtimeApp are both open source tools. It seems that Apache OpenWhisk with 4.1K GitHub stars and 791 forks on GitHub has more adoption than RealtimeApp with 289 GitHub stars and 10 GitHub forks.