Hello all,
Apple's introduction of the App Tracking Transparency (ATT) framework with iOS 14.5 in April 2021 limited the usage of the identifier for advertisers (IDFA) for identifying users/devices across apps of different developers/publishers/vendors (simply “developers” henceforth). But developers can still use the identifier for vendors (IDFV) to identify users/devices within their apps.
My questions are as follows, and I highly appreciate any help:
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How do I know which apps belong to which developer, enabling that developer to use IDFV to identify users/devices within their apps?
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Is the developer — listed on an App Store’s webpage — a vendor? Thus, enabling the developer/vendor to identify users/devices within the apps it owns as a vendor? For example, the displayed developers of "Facebook" and "WhatsApp" are different. Does this difference imply these two developers cannot use the IDFV to identify users across "Facebook" (https://apps.apple.com/de/app/facebook/id284882215) and "Whatsapp" (https://apps.apple.com/de/app/whatsapp-messenger/id310633997) (I am aware that they can use other methods to identify users uniquely)?
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Do you believe that Apple’s introduction of the ATT led developers to merge with other developers to identify users via IDFV across more apps?
Kind regards
Lennart