I use the CakeUlator on the iPhone. It takes some time to get it all set up with your costs--but once you have the recipes set up it is very helpful. It is, however, mainly for recipes…you would have to set up a "recipe" for utilities, and cake boards, etc. Also you can only add 6 "recipes" per order which is annoying. BUT, $5 compared to $150 for cakeboss---you get what you pay for!
I have been beta testing an app called TieredCaker for the iPhone/iPad. It allows you to enter your price per serving and lets you build a cake based on the number of servings you need. It's not really a recipe coster, it's more of a quoting tool. I have made several recommendations to the develeoper (whose wife is a baker) and they seem very determined to make it a great app.
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