All information, and people are giving it to them for free. There is billions in dollar of profit from selling peoples data and the user gets nothing of that.
Only if the user is aware of that.
Not defending Google, they suck. But in this one instance I don't think it's that much of a dirty secret or anything. Just an open dirty behavior.
It it worth it? Are they completely upfront about the data they’re harvesting?
You can opt out. Stand alone gps is still available. Open Street maps is an amazing open source program too.
My car has a 2010 gps. It works. It’s not great but it’s gets you close. In some ways I miss my old Tom Tom. It had the mr. T voice yelling at me where to go.
I would love an app that would feed the data back into open street map.