Apple is changing their privacy settings for iOS6 and deprecating device UUIDs (UDIDs). According to a WWDC presentation and the docs there are two replacements for the UDIDs, both in the UIDevice
class:
-identifierForVendor
-identifierForAdvertising
It seems to me that -identifierForVendor
is inferior to -identifierForAdvertising
since it would get reset on last uninstall of an app from a vendor and by "erase all contents & settings".
What advantages does -identifierForVendor
have over -identifierForAdvertising
?
Important Note:
Apple just released iOS 6.0 and the NDA has been lifted.
For developers who preemptively included code that referenced
[[UIDevice currentDevice] identifierForAdvertising]
this method has NOT been included on iOS 6. If you use the above method, your app will (most likely) crash and be rejected!
Instead, Apple has created a new class ASIdentifierManager
, which includes the method advertisingIdentifier
. Here's the apple docs on it: