What are some alternatives?
When comparing Google Cloud Functions and Azure Web Apps, you can also consider the following products
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
Dokku - Docker powered mini-Heroku in around 100 lines of Bash
AWS Lambda - Lambda is a cloud service that Amazon Web Services (AWS) provides, which allows developers to run serverless code.
OpenShift - OpenShift gives you all the tools you need to develop, host and scale your apps in the public or private cloud. Get started today.
AWS Elastic Beanstalk - Quickly deploy and manage applications in the AWS cloud.
Zoho Creator - Business mobile app creation, development and sharing