Rate your plate

Shopwell is a free iOS app that helps you keep a healthy diet by rating your food and suggesting alternatives

Based on your profile, the app rates a wide range of food items with a colour-coded number out of 100 – the higher the number, the better for you. You can either scan or search for items and each product page includes ingredients and nutrition facts. Healthier alternatives are listed at the bottom, each with a number rating.

Via. http://howto.cnet.com/8301-11310_39-57358186-285/how-to-food-shop-well-with-shopwell/