UDID Solution Tools
1. OpenUDID – An open source UDID initiative by Appsfire, a mobile app marketing platform. OpenUDID provides a replacement UDID which can be access by any app, provides open-source code to “generate and access the OpenUDID, for iOS and Android,” and enables user opt-out.
2. OFUID – OpenFeint Unique Identifier, created by the OpenFeint mobile gaming network for the gaming app developer community. Users that opt-in to the OpenFeint system provide access to the OFUID, a universal account system for the gaming network’s cross-platform users. Developers can use the OFUID to track users across apps.
3. Device Fingerprinting – An emerging and controversial device identification technique in which a unique “fingerprint” is assigned to a device based on information from its properties and settings, and not on UDID. Once the device is fingerprinted, it is added to a database for future device recognition. Several device fingerprinting tools are listed below:
- dotMobi’s DeviceAtlas – Used by mobile ad network Adfonic
- 41st Parameter’s AdTruth – device fingerprinting service AdTruth now honors the Do Not Track technology in Mozilla Firefox
