The goal of PrivacyGrade.org is to help raise awareness of the behaviors that many smartphone apps have that may affect people's privacy. PrivacyGrade provides detailed information about an app's privacy-related behaviors. We summarize these behaviors in the form of a grade, ranging from A+ (most privacy sensitive) to D (least privacy sensitive).
For example, social network integration might be of more concern to some than ad networks and location permissions — but whatever your personal criteria — the folks at PrivacyGrade have compiled some very interesting statistics.