Anyway to identify devices uniquely?

Discussion in 'iOS Programming' started by MacMan988, Jun 5, 2014.

  1. MacMan988 macrumors 6502a

    Jul 7, 2012
    Hi, My app offers a free-trial of a paid service for new users. I know that in-app purchase has a built-in trial system. But I think some users who are not well knowledgeable about in-app purchase will be reluctant to tap on the "buy" button unless they are ready to buy. I thought of providing a registration and login mechanism but still it would be much cleaner if I can programmatically identify devices uniquely, even after deleting the app and re-installing it.

    Is there any way to do this on iOS 7?
  2. PhoneyDeveloper macrumors 68040


    Sep 2, 2008
    FYI, data stored in the keychain persists even if the app is deleted. If an app is installed a second time the data in the keychain from the first installation will be available.

    I don't know if that helps you though.

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