XpenseS is a mobile web application where you can manage your budget: you have a list of transactions associated with a category, so that you can see how much money you spent and on what.
The Recipe app keeps track of all your recipes, ingredients, and inventory. It will allow you to save ingredients, keep track of what you have, create recipes, and generate a shopping list based on what you have and what you are missing from a recipe. Also, since sharing recipes is an important part of cooking the app should allow you to make them public so anyone can access them.