I've used Office HD/Quick Edit for about 4 years and have really liked it but when presented with finding a 'free' office alternative for a PC for a friend besides Libre I discovered WPS Office (formerly Kingsoft Office) now has an IOS app. This will be perfect for her since she will be getting an Ipad this Fall and uses an Iphone. I downloaded it to my Ipad Air (have not installed on my PC yet) and found it to be very good, works with Cloud (Dropbox for me), quite easy to use/relatively intuitive if you've used Word before (admittedly haven't tried editing/creating Spreadsheets yet but it shows them with correct formatting). I checked the formatting in the MS Word for Ipad and formatting in Word was correct also. So far I can recommend this app and the fact that it "shares' with the PC WPS app plus Dropbox is a plus for many. Not sure if this has been mentioned before but thought I would add it as its a very good Office alternative (and did I say FREE) and I've tried about all the apps, though I have preferred Office HD/Quick Edit (changed its name the week MS Office for Ipad was announced) all these years since they pay attention to details, customers and upgrade consistently--and the "Office" experience is good.
Diane
Diane