iFitness is designed for those of you who want to constantly try new exercises and keep your body on its toes. It has images of 330 exercises and lets you find exercises that work out certain parts of your body. Video instructions for exercises are included too.

iFitness can be used to track your progress. Users can always add their own exercises and keep track of them. Having the ability to choose routines based on specific goals are a plus too.

These days, you won’t need a DVD player or books to find out about exercises you can do to build a rock hard body. Apps such as iFitness let you do just that on your iPad.

CrunchFu is pretty easy to use. Just hold it next to your chest and do your crunches. It will give you feedback as you complete each crunch. It also has a training program that you can follow each day to get your body in a better condition for doing a large number of crunches. The fun thing about this app is you get to compete against other users. So you always have an incentive to do a better job when doing crunches.

If you find doing crunches boring or tough, CrunchFu can be a big help. It has an easy to follow program and the fact that you can compete against others and challenge them can add a whole new dimension to your exercise program. Besides, the app is accurate enough to keep track of your crunches on your iPhone, so no need to keep count yourself.

If you want to improve your body’s condition to handle more crunches at once or just want to get your body moving and fit over the long run, CrunchFu can help. It’s affordable, fun, and gets the job done.

If you intend to lose weight by sticking to your diet, these 5 iPhone diet apps can help:

FitClick Diet & Workout Tracker: lets you keep track of your diet and your workouts. Covers 110,000+ foods and 8,000+ exercises.

FoodScanner: one of the best ways to find out more about the foods you intend to take and their calorie information. Just use your iPhone to take a picture of UPC barcodes, and you are set. Has 200K foods in its database.

Lose It! for iPhone: a free application that lets you set goals and track your progress to see whether you are achieving your goals. It track nutrients such as protein, fat, and carbohydrates. Helps you stay under your daily calorie budget.

Calorie Counter & Diet Tracker: a free, attractive diet application for iPhone that tracks calories, fat, protein, carbs, sugar, fiber, and cholesterol of your meals. It helps you set goals that fit your body profile and keeps you motivated with all the reports and charts.

Weight Watchers Mobile: Weight Watchers does not need any introduction. It is one of the best online diet programs around and can help you eat right and lose weight too (using its point system).

These diet apps won’t lose the weight for you, but they can help you stay on track and motivated with your diet. They are pretty affordable too!

Twitter is one of the hottest Web 2.0 communities around these days. Millions of tweets are posted to the site on a daily basis. It’s a great way to share information, learn from others, and expand your network. Twitter allows anyone to get in touch with the gurus and experts in any industries and connect with them. But Twitter is more than just about making conversations. Did you know that you can actually track what you eat and even lose weight using Twitter?

There are a lot of tools that you can use on Twitter to become more effective. It just happens that a few applications let you track what you eat and how much calorie you are taking in. That way you can stay on track and continue losing weight. Let’s not forget that Twitter allows you to connect with other folks who are in the same boat as you. By connecting with these folks, you can form a group and lose weight together. Here are a few Twitter tools that can help you stay on track and lose more weight:

• FoodFeed: foodfeed is a service that helps you share your eating habits with everyone, from anywhere. It’s also a great way to find people who are in the same boat as you. Maybe you can form a group and help each other out with weight loss.
• SugarStats: a great way to track what you are eating everyday.
• TweetPlot: Tweetplot is a charting tool for Twitter. If you plan to track your weight loss progress or how much calorie you have been taking in the past few days, you can use TweetPlot to create a graph based on your data.
• Tweet What You Eat: another great tool to note down what take during each day. Sometimes, we forget a lot of those small things that we have during the day. But the calories add up quickly. With this tool, you can track what you are eating.

As you can see, you can do much more than talking on Twitter. If you are on Twitter all day, why not use it to improve your health as well?

*for more information on Twitter apps, log on to Twitter Hacks.