Published January 9, 2013 10:00AM

Curious to find out how many calories pass by your lips during the day? Download these handy (and free!) apps to stay on top of your caloric needs.
Track your calories consumed and expended in a snap. An easy interface has made this app uber-popular with 6 million users worldwide – fitday.com.
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Find the nutritional info of nearly any food or meal. A handy barcode scanner makes inputting info for packaged items a breeze – myfitnesspal.com.
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Make calorie tracking a social affair. This app enables you to monitor your fitness and diet progress while connecting with a large community of health-and-fitness minded users – sparkpeople.com.