This document generally explains how and why personal data is collected, and how and why it’s processed. Depending on which privacy laws you are complying with, your Privacy Policy may need to include other information, such as whom you share data with, and users’ rights regarding their personal data.
No matter which privacy laws you are complying with, the basic idea of a Privacy Policy is to inform your users about what will be done with their personal information so that they can decide whether or not they want to provide you with it.