App Store - Calorie Counter & Diet Tracker by MyFitnessPal

Requirements: Compatible with iPhone, iPod touch, and iPad.Requires iOS 3.0 or later

Lose weight with MyFitnessPal, the fastest and easiest to use calorie counter. With the largest food database of any calorie counter (over 1.1 million foods), and amazingly fast food and exercise entry, we’ll help you take those extra pounds off! There is no better diet app – period.