Similarly, the iPhone Analytics setting makes an explicit promise to users that if they flip a button, they’ll be able to “disable the sharing of Device Analytics altogether.” But researchers have now shown
that’s really not true either:
Tommy Mysk and Talal Haj Bakry, two app developers and security researchers at the software company Mysk, took a look at the data collected by a number of Apple iPhone apps—the App Store, Apple Music, Apple TV, Books, and Stocks. They found the analytics control and other privacy settings had no obvious effect on Apple’s data collection—the tracking remained the same whether iPhone Analytics was switched on or off.
Researchers found that even when they flipped off every privacy button on the iPhone, the app store still tracked every behavior in real time, including what apps a user searched for, what ads were seen, and how long ads were looked at. The App store app also tracked user ID numbers, phone model, screen resolution, keyboard languages,
and details on your internet connection.