what are the different options for app hosting

[Raja Seemakurthi _Appfire_]

I'm just looking for the available options for hosting an app.

Please help.

[Nic Brough _Adaptavist_]

What do you mean by "app"?

I ask because Atlassian have a confusing definition (this happens a lot with them).  To most people, an "app" usually means "software for my mobile device".  In the world of Atlassian, it means "a thing I plug into an Atlassian system".  And there are two types of app, determined by their platform.

So, I could use a bit more detail on what you're looking for.  Even if it's "Atlassian's definition of app", that's fine.  I just don't want to answer the wrong question!