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[note: this is technical post for iOS developers, publishers and ad networks] Do you remember all the fuss about UDID? Yup, the dust has settled on this one, like most things. But today is the right day to revive the topic! UDID tracking posed a number of ethical and user privacy concerns a few years […]

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OpenUDID adoption has accelerated in the past few weeks and seems to have reached a sort of critical mass. In fact, a study by Fiksu shows OpenUDID as the most widely adopted “universal” alternatives (i.e. one that does not presupposed prior agreement between parties). The picture featured on the OpenUDID GitHub (below) shows a variety of […]

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Lame and inelegant. This was our reaction when we discovered that a launch partner of OpenUDID, Crashlytics, decided to create an alternative to the UDID called SecureUDID. It’s not so much about the code and the product, but rather the process and the lack of disclosure. The issue here is really about Open Source project […]

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We’ve covered this issue before, preemptively. But now is the time to act! Some reports have emerged that Apple is now massively rejecting apps that still use the “[UIDevice uniqueIdentifier]” a.k.a. the UDID (Unique Device IDentifier). This means that developers have two choices: drop using this entirely, or find a replacement. Some have gone the […]

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With the introduction of iOS 5, Apple implicitly indicated that it will soon remove the ability for developers to access the unique device identifier, also known as UDID. While not the most important API in the entire iOS SDK, many in the app ecosystem have grown dependent on this UDID, for legitimate aggregate measurement needs, not […]