4 ms·
There is an IDFA (ID for Advertisers) and an IDFV (ID for Vendors). The IDFV is unique per developer; the IDFA is unique per device. The device user can reset
by VintageCool 7y ago
There is an IDFA (ID for Advertisers) and an IDFV (ID for Vendors).
The IDFV is unique per developer; the IDFA is unique per device.
The device user can reset their IDFA at any time, and if the user disables ad tracking then the device returns 00000000-0000-0000-0000-000000000000.
- banachtarski 7y agoYes but in practice, users never do, and when they do a reset, fingerprinting employed by most (all?) ad exchanges can make the association without issue.