Excess weight loss smartphone apps (applications) are used. But they may not work properly all the time. Dropping out, that happens to use the United States, a new study has revealed. A research report published in the Journal of Internal Medicine has ayanalasa. About 212 people with problems of obesity experiment was run for six months. At half-time to reduce the weight of their smartphone, "My Fitness Paul uses the app. Everyone else is asked to accept any other method. After six months, the app user weight than others very much.