What is IDFA and is Apple IDFA important?

IDFA not tracked on iOS Simulator The events are being triggered from the viewDidAppear() method in ViewController Could you help me track

While Apple has decided to postpone the IDFA changes until 2021, both new options and old alternatives to IDFA have already come into focus

idfa IDFA stands for Identifier for Advertisers It is a unique, resettable ID assigned by Apple to each iOS device, used to track user activity

idfa IDFA is an identifier assigned to iOS devices for tracking and targeting ads Mobile marketers use IDFA to track user engagement