My brother uses it so his documents follow him around. It's your personal office system. Not like days of old at all.
To get your docs to show on your iPhone, head to https://itunes.apple.com/us/app/microsoft-office-mobile/id541164041?mt=8
If you want to not share docs, Office 365 is not the choice I would have made. Did anyone tell you about LibreOffice?
Bob
Back in April my wife was visiting her parents and saw that their PC had no word processing so she purchased Microsoft Office 365 for them ($70 / Microsoft Store.) I thought that I could also install it since I still use Office 2007. But it looks as if it can only be used on 1 PC and 1 mobile device. So I'm thinking I can install it on my iphone since I do word/spreadsheets on my phone. I have a few questions first. 1: Will my In-laws' documents show up on my phone and my docs show up on their PC because of their cloud service (or can that be disabled - I don't wish to share docs.) 2. Can I then use Dropbox to transfer my docs? 3. I see the word "subscription" used in conjunction with Office 365. Will we have to pay again in a year? Thanks!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic