Apple lists all the BSD-licensed parts of iOS under Settings/General/About/Legal. Third-party apps usually hide this information deep down in the About screen.

Apple lists all the BSD-licensed parts of iOS under Settings/General/About/Legal. Third-party apps usually hide this information deep down in the About screen. I have also seen apps that come with a Settings bundle just to show the licensing information there. I think it really is only an issue with the (L)GPL.