On the features page for the iPhone app, it shows that I can tap and hold on a word and see morphology. Is this function available only if I have Logos 4? I only have the iPhone app at this point. If I tap and hold on word in a Bible, I simply get a little menu that pops up that offers choices like "Copy, Look Up, Search" and if I tap look up all it does is offer me options to look up the word elsewhere.