If  you're trying to lose weight, stay healthy, save money, save time, or any combination of the above,using a meal planning app is the best way to go about it. When you write up a meal plan before you go shopping, you're less likely to impulse buy unhealthy foods and more likely to have a less stressful week because you won't have to worry about what to make or eat for each meal. Here's our list of the best meal planning apps for iPad.