Hi
The latest version of Office for Android is now in the Play Store, removing the requirement of an Office 365 subscription.

Original story: Alongside the much-awaited announcement of Office for the iPad, Microsoft dropped a bit of a bombshell today by making Office for Android completely free to use on phones. The app itself has always been free, but you needed to have a paid Office 365 subscription in order to make any use of it.

See here:
http://www.androidcentral.com/microsoft-office-goes-completely-free-android-phones

Available on Play Store.