Of course you do. If you use a Samsung phone (just an example), its apps scan everything you open for phone numbers, etc. And if you interact with anyone at a

Of course you do. If you use a Samsung phone (just an example), its apps scan everything you open for phone numbers, etc. And if you interact with anyone at all, or even if you call them, well now you're in call history. People are happy to share call history to save 99 cents on an app. So yes.