Im giving this five stars for the fact that it exists. Having an electronic version of the book on my phone as an app is great. I frequently find myself checking it at the store or showing my friends. The searching capability makes it very quick and easy to find what I want. However, I think the positive possibilities for expanding this app are excellent. When I click a company name, why not have some quick facts about that company that would help explain its letter grade? How about a link that shows me nearby places I can buy grade "A" products on a map? I hope the developers continue to expand this app. Also, I would really love to see the categories not listed in all caps. Its really grating on the eyes. A few suggestions, but this is a great start!