PhotoCalorie is an application available through the iTunes store which enables you to keep track of the nutrition information in your diet simply by taking a picture of your food, and typing in a description.
We are constantly improving the complex algorithm that PhotoCalorie uses to calculate the nutrition information of your meal. You can think of it like a Google search for nutrition information. While we strive to be as accurate as possible, sometimes we are off due to the variety in types of food and quantity. It is important to remember that all nutrition information is estimated based on a typical serving size and therefore, is not exact. Our database includes foods from the USDA and countless restaurants and food-chains, which we are continuously updating.