Great explanations, thanks. I think the biggest difference is that some games (like Dungeon Keeper Mobile IIRC) have IAP into perpetuity - meaning you can essen

Great explanations, thanks. I think the biggest difference is that some games (like Dungeon Keeper Mobile IIRC) have IAP into perpetuity - meaning you can essentially never unlock the full game. I like your FTP client example, I'll be using that.