You can't trust Amazon Underground
What is the fear here?<p>I&#x27;m not talking about shady apps you downloaded off some dodgy pirated Android app store, or apps where you agree to this sort of tracking so you get free apps (e.g. Amazon Underground, which the author is using).<p>I mean - official apps such as Twitter, Snapchat, or say Microsoft or Google applications.<p>Can anybody quantify what they are scared of, if an app tracks how often you use it, or collects anonymised metrics?