Do you plan on having transfers without exchanging currencies? I have 2 country presence and have Euro accounts on both countries. Ireland/Turkey. Also will you be adding more countries?
There is Revolut, which can do this free or low cost, but lately this service seems to be akin to swift transfers and can be fee deducted by interim banks. Our circle has been using Revolut for similar transfers up until some of us fee deducted by huge amounts.
So this leaves us with Transferwise. And Transferwise only does exchange transfers across borders.
This is not really something we are happy with because there are exchange taxes applied in Turkey to move it into the Euro account back.