To me, it seems like the [apple] tag is redundant. What do you guys think?
There can be posts that refer to Google the company or Apple the company. See this post for some discussion on Google tags (with you).
EDIT: None of those questions needed that tag, so I cleaned them up.
My opinion on this is the same for [google]. At least Google deals with web applications more than Apple. Personally, I'd close the question regarding Apple Calendar as that seems like a SU question, and then [apple] can safely be removed from the other 3 questions.