Yes, I love it! fitness instagram In theory, most apps let you delete your information. But programs such as the FitBit reserve the right to keep and analyze your information, and possibly pass along the data to third parties to make sure the program works as promised. What would happen if these tech companies decide to package and sell all that data? Could a person ever be denied a job or life insurance, for example, if their mobile app showed they tried but never quit smoking?