When comparing Convox vs AppHarbor, the Slant community recommends Convox for most people. In the question“What are the best Platform as a Service providers that have a free plan?” Convox is ranked 4th while AppHarbor is ranked 9th. The most important reason people chose Convox is:
Convox is built on Docker and deployments are made using Docker containers. Because of this, developers have a large number of existing Docker images to choose from with which they can customize their environment to suit their needs.
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Pros
Pro Can use Docker images and containers out of the box
Convox is built on Docker and deployments are made using Docker containers. Because of this, developers have a large number of existing Docker images to choose from with which they can customize their environment to suit their needs.
Pro Only pay for the hosting
Since Convox itself is a free and open source software, you do not have to pay for using it. Developers only have to pay for the cloud hosting itself (in this case AWS instance) where Convox will be deployed.
Pro Easy setup
Getting started with AppHarbor is pretty easy and straightforward. You sign up and after a few clicks you choose the database system you need and you are ready to deploy your app.
Cons
Con Only supports AWS
Convox is a PaaS that can be installed and deployed on existing AWS instances. There are plans to support other cheaper alternatives in the future, but for now only AWS is supported.
Con .NET only
AppHarbor only support .NET applications.