Multiple subs on one account

[Sotaris]

I am not sure of this the right place to post this. I’ve googled and can’t find a clear answer or I don’t know how to word the search to get an answer.
So I am going to try and be clear with this:

Is it possible to have more than one subscription attached to my account?

Yes. As multiple service account on same SE Account, can't understand why you would though.

If it is possible and I purchased FFXIV on a different platform would I be able to play my 2 subs at the same time?

Haven't tried with multiple service accounts on same SE account but maybe might work.

Or are the subs tied to each license and not the account?

They are yes

[kaynide]

Hi there, I do this with my wife.

Basically, you will need to purchase the game in full for each account you want to run at once. It does not care whether you buy the PlayStation version or PC, but you will need to purchase the entire series for whatever platform(s) you want to run with. Once you have an account set up, it does not care which platform you use/log in on, but it will need a license to use ps4/pc/Mac for each individual account.