Only about 4% of U.S. iOS users and about 11% of worldwide iOS users are saying yes to tracking.

It turns out no one wants to be tracked all across their iPhones by Facebook (or anyone else)
Three years ago, we ran a piece by Digital Content Next's Jason Kint on what kinds of data collection and tracking consumers expect Facebook to do in order to improve their ad targeting. A majority said they expected Facebook to track their activity within Facebook, as well as within sibling app…
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