Are all the weightloss, health and training webapps good enough?

I have recently lost 20 pounds in about a month and turned my life over and got back to training and stopped eating junk food.

Are the health programs out there good enough? What is missing in them? This must be a huge market but it might be already taken? I mean how many millions in the world are overweight? And those 2.5 billion indians or chinese will soon start to be...

I have googled some but haven't found anything...there must be right?