> What is the (additional) cost of using her, in each case?
There's no monetary charge for either one, as such.
You have to set up an account with Apple (for the iPhone and Siri) and with Microsoft (for Cortana). Both are free.
5 posted on 12/21/2015 6:40:53 AM PST by dayglored
("Listen. Strange women lying in ponds distributing swords is no basis for a system of government.")