Which Apps Shares with Which Domains

A survey of using 110 free popular apps found most apps share personal information with many domains, and not just the domain of the app developer. Below are maps of the actual data sharing found when using Android and iOS mobile devices. [source].

Android

Sensitive data sharing by Android apps. Apps (left) connected to various domains (right). The color of the line indicates whether the domain is that of the primary maker (orange) of the app or of a third party (black). Apps with bigger circles shared sensitive data with more domains, both primary and third-party.

iOS

Sensitive data sharing by iOS apps. The color of the line indicates whether the domain is that of the primary maker (orange) of the app or of a third party (black). Apps with bigger circles shared sensitive data with more domains, both primary and third-party.