iphone app with role based login?

Can iPhone apps have role based login?

In my application I have to display the content according to the role o开发者_JS百科f the user (employee, visitor). Till now I havent seen any app with role based login for iphone. Can I develop role based login? is there any restriction from apple side for these kind of logins to approve the app?

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If your app has a login, you are supposed to give Apple a login/password to test the app. If they notice that there are multiple roles, I would assume that Apple would want to be able to test each role.