This has been on my mind for a while now. There have been more and more apps that are initially free and then allow you to by functionality using in-app purchase. NLog Free is a good example, as is the recent iShred Live app.
So, what do you consider to be acceptable as an in-app purchase? I’ll be putting up a poll soon to ask you what you think is ok.
When you fill it out only tick the options you would be happy to pay for via in-app purchase.