Ring in the New Year with a flat stomach.
Form a virtual running team and track your runs using your smartphone's GPS with RunKeeper.
Available on: iPhone, Android, Windows Phone 7 and Symbian
Stay accountable by tracking your food intake using My Net Diary.
Price: $3.99 on iPhone and Android, $9.99 on iPad, free on Blackberry but requires a membership
Available on: iPhone, iPad, Android, Blackberry
Your friends can cheer you on while you run by liking or commenting on your status with Nike+ GPS App.
Available on: iPhone
Use Tap & Track to shop for and follow your favorite diet, whether it be Atkins, South Beach, or Protein Power.
Available on: iPhone, iPod and iPad
You'll find motivation in your friends' weight loss success stories with My Fitness Pal.
Available on: iPhone, iTouch, iPod, iPad, Android devices, Blackberry devices and Windows 7 devices
Set up a small, manageable goal with Marble Jar.
Available on: iPhone, Android coming in January
Create a weight lifting routine, schedule and track your sets with Gym Buddy.
Available on: iPhone
Photo Courtesy of auremar / Shutterstock.com
Don't be tempted by fast foods. Create a meal plan with Food on the Table.
Available on: iTunes, Android devices
Snap pictures of what's on your plate before you consume it with The Eatery.
It's a food slot machine. With Shake a Snack, you get over 300 healthy snack recipes.
Available on: iPhone, iPad, iPod Touch
Weight loss can be difficult if you're not getting enough shut eye. Track your sleep stats on iHome + Sleep.
Can't afford a personal trainer? Try doing sit-ups with CrunchFu on your chest. It'll give you feedback on your form.
Available on: iPhone, iPod Touch
You'll be ready for your first road race in nine weeks with Couch to 5K.
Photo courtesy of Maridav / Shutterstock.com
Use iMuscle to find exercises that strengthen core muscle groups.
Available on: iPhone, iPad
Figure out your weight loss goal and stick to it with Lose It!.
Available on: iPhone, iPod, Android phones and tablets, the Kindle Fire, and the web
Order smart when eating out with Restaurant Nutrition.
Photo courtesy of iofoto / Shutterstock.com
Nutritional information is at your fingertips with LIVESTRONG.com's Calorie Tracker.
Available on: iPhone, iPad, Blackberry, Windows phones
Designed like a video game, Body Fate will keep you engaged--and toned, using what equipment is available to you.
Available on: iPhone, iPod Touch, iPad
Better yet, use your smartphone to scan the barcode and let Fooducate do it for you.
Available on: iPhone, Android
Kick the coffee habit (or the soda) and get some water in your body with Drink Tracker.
Jennifer Jeanne Patterson is a freelance writer and author of 52 Fights. She lives in Minneapolis with her husband and three children. Find her blog at Unplanned Cooking.
Related: Amazing Body Transformations
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In one month time of using this application it helps me in losing weight faster than any other methods available. I lost a stone. Thanks Life Hypnosis.
So out of the 20 apps listed, I was very surprised to not see my favorite, and in my humble opinion, the best one... intelli-diet!!! Check this app on youtube. It's awesome. I use it every morning. It tells me what to eat and how much to eat based on foods I have. And...it is customized based on how fast I want to lose. I love technology! Great tools which really help keep you focused. Love it. Here's a review on youtube for it: http://www.youtube.com/watch?v=7qKWu1tP7oA
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