Apart from /e/OS, the user interface differs only slightly from an Android system preinstalled on a smartphone. The biggest difference lies in the lack of and often annoying customizations made by smartphone manufacturers such as Xiaomi or Samsung, also known as bloatware and often including monitoring functions, as well as the absence of Google apps.
Due to licensing reasons, the Google apps are missing, which makes the alternative Android systems Google-free options. This not only eliminates the deep integration of the operating system with the associated data transmission to Google, but also access to the Play Store, the Play services and the advertising ID. The advertising ID is used for cross-app tracking and is also present in iOS in a similar form. However, iOS users are asked for permission before a tracking service can access it. According to a study by the University of Oxford, 86 percent of Android apps and 43 percent of iOS apps access the advertising ID.