I wrote an app targeting a particular clientele. A software company with a reputation among my target audience is willing to negotiate a price to either license or buy it. As a newcomer to the app store, I am not sure that I will successfully market it myself.

What would be appropriate terms of a sale or license and what about pricing?

I am looking for answers that draw from personal experience with software, although not necessarily apps.

I've seen this post on SO, but it's a few years old and I assume that the app market has changed and stabilized somewhat.

Thanks.