Here's how you can download the Microsoft Office Mobile for Office 365 Subscribers app free for your iPad, iPhone, iPad mini or iPod Touch.
1. Go to the Microsoft Office Mobile for Office 365 Subscribers app preview page in iTunes (or tap the link on your iOS device to install the app directly).
2. Click the View in iTunes button.
3. Click the Free button to download the app.
4. Sync your iPad, iPhone, iPod Touch or iPad mini with iTunes to install the app.
Office Mobile for Office 365 Subscribers is a free app that lets you edit, view and access your Microsoft PowerPoint, Microsoft Word and Microsoft Excel documents on your iOS devices. It has support for charts, animations, graphics and shapes.
Note that an Office 365 subscription is required to use this app.