Who rated negatively far here on the grounds of data protection, the living reality. Here the implementation and programming of the app should be evaluated. The necessary rights are logical and necessary. The issue of data protection is unnecessary, since almost without exception, each app gets access to all the data on your smartphone and developers could theoretically make it what they want. In addition, to be released by linking and sharing on Facebook and Co equal to all the records of the telephone book .... nice if you have friends who think about it before you share your highscore on Facebook: - /. I assume that people who use such an app enough brain and sense of responsibility have to protect your phone in general. Apart from the fact that even without this app you have the option / would, using the standard phone book to store all the data of a person incl. Notes to the person. Maybe think beforehand times before skin to an app to evaluate negative here in the Keys. By the way .... in PlayStore of Google are the ratings between 4-5 stars.