Apple has always appeared with an image that respects user privacy. While Facebook has met many scandals on this issue in the past. Apple did not hesitate to attack Facebook in a response to human rights and privacy monitoring organizations.
In contrast, Facebook and many companies take a very different approach to ad-driven. They also use very detailed data about online behavior to navigate.

Through both genuine and third-party products to develop and monetize user profiles. This disregard for user privacy is increasingly being extended to more products. This feature was originally part of the iOS 14 version, released by Apple in mid-September.
However, many Apple partners, including Facebook, have opposed it because they think it adversely affects the business situation joint business. At the last minute, Apple has moved rollout until 2021 so that apps have time to change.
While there’s no complete blocking of data sharing, privacy protection is still one of the most appreciated aspects of iOS 14. In response to Apple’s letter, Facebook said that the company was trying to distract users from their own problems. Facebook argues that Apple used its power to stop competitors like Facebook.
Advertisers can now use a special ID number called an IDFA to direct an ad to the most relevant group and gauge its effectiveness. Also in iOS 14, any application that wants to use IDFA will have to ask the user permission to follow when the app runs for the first time.

“They are using their dominant market position to prioritize their own data collection methods, while restricting competitors from using data. Apple claims to care about users, but really only. need to know profits, “Facebook said in its official response.
David Fischer, Facebook’s Chief Revenue Officer, thinks the company’s personalized advertising model is at stake. That’s when Apple is about to adopt the privacy changes on iOS 14. Facebook advertising model is under attack after changes on iOS 14.