Where do they come out and say that? Where do they put a message, in readable english, and not buried under a thousand other things, that says they'll do that?
I agree privacy policy details are opaque, but it takes the bare minimum of skimming to know if the policy is not giving up your data.
It should be clear as day what’s being collected and it’s a failing that it’s not, but there’s also the old adage of “if it’s too good to be true...” doing some due diligence when you’re promised the services of a billion dollar company that’s not charging you is prudent.
Allowing the app to access the contact list doesn't mean that the user allows to upload call history to the server. Maybe they only want to add one of the people from their contact list.
It should be clear as day what’s being collected and it’s a failing that it’s not, but there’s also the old adage of “if it’s too good to be true...” doing some due diligence when you’re promised the services of a billion dollar company that’s not charging you is prudent.