Fission vs RealtimeApp: What are the differences?
Fission: Serverless Functions as a Service for Kubernetes. Write short-lived functions in any language, and map them to HTTP requests (or other event triggers). Deploy functions instantly with one command. There are no containers to build, and no Docker registries to manage; 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).
Fission and RealtimeApp can be categorized as "Serverless / Task Processing" tools.
Fission and RealtimeApp are both open source tools. Fission with 4.47K GitHub stars and 399 forks on GitHub appears to be more popular than RealtimeApp with 289 GitHub stars and 10 GitHub forks.