Comment by everdrive

I'd go even further. Even if you trust it now, can you trust it in 5 years? How much of your data do apps, companies, and mobile providers hold onto? The real answer is that you don't know. So if your phone is a super precise GPS that you can't turn off (eg: Android) -- were you near a crime scene by chance? How about a big protest 2 years before the political winds shifted. Who knows you were there? You can't know for sure.