Are you wondering what you should eat tonight? Five helpful free iPhone apps locate healthy eating ideas for those on very restricted diets, such as gluten-free or vegan, as well as for those just watching fat grams or carbs. Specialized diets, such as vegetarian or low sugar, were difficult to adhere to in the recent past. However, the food and dining industries have become more aware of personal aversions to factory farming and of medical conditions, like diabetes and celiac disease. Let one of these five free iPhone apps help you find tonight’s perfect recipe or restaurant. 1. Edamam is a search engine that matches recipes to your craving. This app searches recipe sites, such as Epicurious.com, Bon Appetit.com and 101 Cookbooks.com, until it finds the perfect recipe. Edamam lets you search by 11 special diets as well as by calories. Have a sudden craving for gluten-free peanut butter cookies? That is no problem for Edamam. 2. Food Community is an app by Nommunity.com that h...