In October of last year, I shared Kingsoft Office Free 2013, a no-cost, powerful Windows alternative to MS Office. Earlier this month, Kingsoft Office released an iOS compatible with for Word, PowerPoint, and Excel.
Kingsoft Office is compatible with and allows you to read and edit Word and PowerPoint documents and has the capability to view Excel files.
Kingsoft Office can sync with popular cloud services such as GoogleDrive, Dropbox, and others; transfer documents to other Kingsoft users over Wi-Fi; sync documents opened to your account from either your device or desktop without using any cable connection. File management allows creating folders, copy, move, delete, rename, and save as.