How to resolve installing Microsoft Word app on older ios devices
If you're using an older ios device that's running 10.3.3 or older, you will not be able to install the Word app, I tried but couldn't find a workaround. The only alternative, which allows you most of the functionality of Microsoft Word, is to log into your office account(Microsoft Account), https://office.live.com/start/Word.aspx, via the Safari app, which will allow you to access, edit, print and save any documents that have been saved to your onedrive.
If you have documents that you have not saved to OneDrive, but want to continue to work on them, you'll need to save them to your OneDrive account. If you've only ever saved your documents to your desktop, open a OneDrive account and upload all the documents you want to save.
That's the only workaround I've been able to find. GL : )
iPad (4th gen) Wi-Fi + Cellular