Current apps on weight management have not been certified by health authorities and there are no published data on their effectiveness

Overweight and obese people are turning to a multitude of smartphone apps to help them lose weight. But new research says that only 17 (0.5 percent) of the apps identified by the researchers have been developed by a certified health organization or university.

from Diet and Weight Loss News -- ScienceDaily https://www.sciencedaily.com/releases/2016/06/160602220542.htm
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