A new study looking at how mobile Android apps track smartphone users has revealed some interesting facts about Android applications, InfoWorld reports, finding that many apps collect plenty of personal data in an attempt to track users online and serve them targeted ads in the process. Two French organizations, including the French National Institute for Informatics Research (INRIA) and the National Commission on Computing and Liberty (CNIL), installed a monitoring app on Android phones belonging to 10 different people, encouraging them to use the handsets as they normally do.