A:AnswerNo it has to have gps, so it can be used as a stand alone device and access the internet just like your phone. All the new iPad pros with gps do have 5g though
A:AnswerThere is ability to use Microsoft 365 version if office. For a fee. You can ‘use Microsoft file types’ with apple apps and there is ability to export in variety if formats.
Not sure about quick books…
A:AnswerThe only difference is that one is exclusively wifi, and the other has the ability to be tied to a carrier (Like AT&T or T-Mobile).
It is an extra charge to have it added to your monthly data plan, and I just use my cellphones hot-spot if I ever need it.