So I just bought a ipad 9.7 pro over the 10.5 recently because A) it was cheap at Micro Center ($320 refurb) and B) I thought it still has support for free Microsoft office apps since it's smaller than 10.1 inches.. however, when I downloaded the Office apps, it wanted me to sign in and when I didn't, it seems like I only got read-only capabilities which is not consistent with what I read about full access with 9.7 pro. Is full access under 10.1 inch no longer true?