another question or two... Surnames ?... my app seems to suggest the last part of the family name changes depending on it being the man or the woman ? Is this correct or its it more like like the "mrs" and "mr" we have at the front in English ? So you would be Peter SmithMr or Phillipa SmithMrs... ?
If so, does it do the same with all names ?... I'm thinking some names might end with a vowel/constantant and it might make it change etc ?

is it too confusing then ?..

They don't tend to speak that way by saying Mr and the surname - they generally say Mrs or Mr followed by the first name.

So for Mr it's κύριε and for Mrs use κύρια

So I would be Mr Steve and my wife Mrs Steve ?

No, she would be Mrs (whatever her first name is) as I would be κύρια Μισιελ