2020 September, ios14 is released. Today let's talk about major change in ios14 about IDFA(Identifier For Advertisers). Since iOS 14, IDFA will become available only with user consent. What is IDFA? IDFA is UUID-identifier of the device. It is used to track app install sources, run re-marketing ad campaigns etc.. IDFA was introduced in 2016. It replaced Device ID – identifier that was unique for..