IDFA Institute

What Apple's Changes to IDFA Mean for Marketers idfa What is IDFA and ATT? Sometimes used interchangeably incorrectly, they're actually two separate acronyms related to iOS user tracking idfa The IDFA is a unique string that users can reset or opt out of entirely, but that still enables advertisers to track them and their engagement within apps By

idfa 253,993 367,040 655,500 Emergency Supplemental - IDFA 110,000 Emergency Supplemental - IRRF transfer to IDFA 110,000 IDFA 2004 Supplemental 8-05-04