FaaS (functions as a serivce) and App Engine are not the same thing. They're both a platform as a service (PaaS), but that's where the similarities end. The di

FaaS (functions as a serivce) and App Engine are not the same thing. They're both a platform as a service (PaaS), but that's where the similarities end. The difference is that traditional PaaS like App Engine and Heroku imply a certain amount of lock-in (although this has gotten better over time), whereas Serverless is a more raw compute service that is no more locked-in than, say, EC2.