There’s Ghostery for Google Analytics and similar shenanigans (not to mention that I expect data to be send to a website when I am online) and I don’t know of a single application on my computer that phones home – apart from Skype checking for updates, because they somehow fucked up their repositories after version 4.2.

Similarly, I am rather positive that none of the applications on my phone phone home, since that would trigger a ‘Do you want to allow this while roaming?’ question each and every time.

Edit: Correction: Steam probably does that. I use it once in a blue moon or so. :)