It’s basically impossible to keep track of what all your mobile apps are doing and what data they share with whom and when. So over the past couple of years, Apple and Google have both added mechanisms to their app stores meant to act as a sort of privacy nutrition label, giving users some insight into how apps behave and what information they may share. These transparency tools, though, are populated with self-reported information from app developers themselves. And a new study focused on the Data Safety information in Google Play indicates that the details developers are providing are often inaccurate.