In your Procfile you can have any type of process you want. The "web" process type is just special because it expects you to open an listening tcp socket on the

In your Procfile you can have any type of process you want. The "web" process type is just special because it expects you to open an listening tcp socket on the port it provides in their environmental variable to your app. Aside from that you could say have a worker process, emailer process, etc and scale them independently.