iAd pretty famously failed because advertisers didn't like Apple's habit of not sharing user data with them. >Despite massive size and overwhelming popularity,

iAd pretty famously failed because advertisers didn't like Apple's habit of not sharing user data with them. >Despite massive size and overwhelming popularity, Apple has struggled to court Madison Avenue's influential media buyers, the people at advertising agencies who decide where to spend the budgets of the world's biggest brands. According to a new report form Ad Age's Kate Kaye, this issue is due in large part to the company's refusal to share valuable consumer data with its advertising partners, meaning that brands are not able to pinpoint prospective customers with nearly the same precision as they can advertising with Facebook and Google. Here's how Kaye said one executive described Apple's decision not to provide information about individual consumers to its advertising partners on the iAd network, which sells in-app ads on iPhone, iPad, and iPod Touch devices: "One person familiar with the situation exec said Apple's refusal to share data makes it the best-looking girl at the party, forced to wear a bag over her head." https://finance.yahoo.com/news/why-people-think-apples-ad-173033632.html https://finance.yahoo.com/news/why-people-think-apples-ad-17...