For purposes of the Children's Online Privacy Protection Act (COPPA), there is a setting called childDirectedTreatment. If your app is designed for kids you can disable sending user data to ad networks by the method below.

Should be called before the SDK initialization:

Appodeal.setChildDirectedTreatment(@Nullable Boolean value);

Call setChildDirectedTreatment with true to indicate that you want your content treated as child-directed for purposes of COPPA
Call setChildDirectedTreatment with false to indicate that you don't want your content treated as child-directed for purposes of COPPA
Call setChildDirectedTreatment with null to indicate that you want to use the COPPA parameter from your application's settings on the appodeal.com