When you're installing an app on a licensed Android phone, you're given a specific menu that is required to have a link to a comprehensive and clear privacy policy so you understand their attitude towards privacy and security. Then it specifically identifies those elements of information that are either held or generated by the phone or by your account that they're requesting access to. On an app on Google Play for an Android phone, you have to be able to link through and see in greater detail why they want that information.
On May 10th, 2018. See this statement in context.