What do the apps you use collect about you? How much control over your device and your information are you giving when you download them? Are you concerned? Should you be? Do you take a look at their Privacy Notices or Statements before you download?
Take a look at this video from the #PrivacyProject:
The message: read those Terms & Conditions and Privacy Statements that apps publish before you download or give permission for an app to do something. If you cannot find a privacy notice or a statement about how they use data or what control you are giving over, think twice before downloading or do more research about that app before using it.