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Editorial Team
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Asked: 2026-06-01T01:49:20+00:00

I have a NSUserDefault which just stores whether the db has been configured or

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I have a NSUserDefault which just stores whether the db has been configured or not. However after deleting the app and re-installing the nsuserdefault seems to remain?

NSString *dbIsConfigured = [[NSUserDefaults standardUserDefaults] stringForKey:@"dbIsConfigured"];
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  1. Editorial Team

    It is local for the app only. The other apps cannot be able to access that.

    From Apple documentation for NSUserDefaults:

    Sandbox Considerations

    A sandboxed app cannot access or modify the preferences for any other app. (For example, if you add another app’s domain using the addSuiteNamed: method, you do not gain access to that app’s preferences.)

    Attempting to access or modify with another app’s preferences does not result in an error, but when you do, Mac OS X actually reads and writes files located within your app’s container, rather than the actual preference files for the other application.

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