Deis vs Shelly Cloud: What are the differences?

What is Deis? Open Source PaaS that builds upon Docker and CoreOS to provide a lightweight PaaS with a Heroku-inspired workflow. Deis can deploy any application or service that can run inside a Docker container. In order to be scaled horizontally, applications must follow Heroku's 12-factor methodology and store state in external backing services.

What is Shelly Cloud? Platform for hosting your Ruby and Rails apps (hosted in Europe). Shelly Cloud is significantly cheaper than other PaaS hosting providers. You save money by getting all services needed to run your application from one provider. We run our own servers, so there is no "Amazon tax" included in our prices. You pay only for what you use with per-hour metered billing.

Deis and Shelly Cloud belong to "Platform as a Service" category of the tech stack.

Some of the features offered by Deis are:

• Deis can deploy any language or framework using a Dockerfile
• If you don't have a Dockerfile, Deis includes Heroku buildpacks for Ruby, Python, Node.js, Java, Clojure, Scala, Play, PHP, Perl, Dart and Go.
• Deis can be deployed on any system that supports CoreOS including your workstation, as well as most public clouds, private clouds and bare metal.

On the other hand, Shelly Cloud provides the following key features:

• Designed for Ruby and Rails
• Git-based workflow
• Easy scaling

"12-factor methodology" is the primary reason why developers consider Deis over the competitors, whereas "Simple scaling" was stated as the key factor in picking Shelly Cloud.

Deis is an open source tool with 6.12K GitHub stars and 863 GitHub forks. Here's a link to Deis's open source repository on GitHub.