how can i get satnav on satio

[buy_my_cookies]

hi all,

i have a satio and would like to get sat nav on it but not sure how to go about this.
do i have to call up vodaphone?
will it incress my monethly bills?
is there not some software that i can just get for a one of payment kinda like a tomtom thing?

sorry if this has been asked befor i did a search for satio and sat nav but couldnt find anything

thanks.

 

[buy_my_cookies]

ok after a bit more looking round it seems i can just download and install ndrive with the uk map and this will work, and i wont incur any extra charges on my monthly bill as it uses gps satellites same way my tomtom does and this is free?

can anyone just confirm that i will not be charged for this, and that my phone wont be downloading maps using internet whilst i am driving around.

sorry bit of a noob with phones!