Cloud 66 is described as 'provides DevOps as a service for Rails, Container (Maestro) and Jamstack (Prepress) applications that can be deployed on any cloud provider or any server' and is a Cloud Computing service in the development category. There are more than 25 alternatives to Cloud 66, not only websites but also apps for a variety of platforms, including Linux, SaaS, Windows and Mac. The best alternative is Heroku, which is free. Other great sites and apps similar to Cloud 66 are OpenShift, Amazon Web Services, Microsoft Azure and Google App Engine.
In 2006, Amazon Web Services LLC (“AWS”), an Amazon.com company, officially began offering developer customers access to in-the-cloud infrastructure services based on Amazon's own back-end technology platform.
Google App Engine is a free* platform for developing and hosting web applications in Google-managed data centers. App Engine offers fast development and deployment; simple administration, with no need to worry about hardware, patches or backups; and effortless scalability.
PythonAnywhere is a Python development and hosting environment that displays in your web browser and runs on cloud servers. The servers are already set up with everything you need: hundreds of useful Python packages and web frameworks are supported out of the box.