As of September 2, users can buy monthly subscriptions to Office 365 — either Office 365 Personal or Office 365 Home — from within Word, Excel and PowerPoint for iPad, according to a September 2 Microsoft blog post.
(Office 365 Personal allows users to run Office on one PC or Mac and one tablet; Office 365 Home allows them to run Office on up to five PCs and/or Macs, plus five tablets.)
"Existing customers, who have purchased Office 365 Home for one year, will continue on the same subscription. If you buy a monthly subscription on your iPad, you can switch to an annual subscription from your iPad, or from iTunes on your PC or Mac," the blog post added.
An Office 365 Personal subscription costs $6.99 per month. The Office 365 Home subscription goes for $9.99 per month. An annual Office 365 Personal subscription costs $69.99; an annual Office 365 Home subscription costs $99.99