Android is Google's flagship smartphone and tablet OS. It's been around for a long time now, and is no longer the open platform it once was. Android today engages in broad spying and surveilling of you as a user, even if you think you've disabled every privacy-related setting in the OS.

While some forks of Android, such as LineageOS, attempt to strip the Google elements from Android, ultimately you are still beholden to Google if you want to install most modern apps.