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That is correct. The IDFA is a compromise to get rid of older, more invasive tracking methods that ad networks used. Apple blocked access to the more sensitive
by user-the-name 6y ago
That is correct. The IDFA is a compromise to get rid of older, more invasive tracking methods that ad networks used. Apple blocked access to the more sensitive data, and instead provided the IDFA which allows users to opt out, and limits the ability to combine data from different sources.
Making the IDFA opt in is now a second, stronger step towards user privacy.
- ratww 6y agoYep. Before IDFA, apps had access to the device's UDID. In the past you could get it by using this code: [[UIDevice mainDevice] uniqueIdentifier] It was deprecated in iOS 5. [1] [1] https://stackoverflow.com/questions/227590/unique-identifier-for-an-iphone-app#comment10515560_227654 https://stackoverflow.com/questions/227590/unique-identifier...