iPhone/iPod: Calorie Counter & Diet Tracker by MyFitnessPal
iPad: Calorie Counter and Diet Tracker by MyFitnessPal HD
MyFitnessPal is my current favorite application for iPod/iPad/iPhone. This is a very nice and friendly application to monitor my eating habit. I think it really works for me at some point whereby I can keep track of the foods intake. This application is sort of food journal to monitor your calorie intake. You can either key in or scan the barcode of the food to make an entry to your food journal.
Enable to work offline
Enable to synchronize with iPad/iPod/iPhone
You can’t scan the barcode it there is no internet access
Have to be 18 years old to sign up for this application