Using VNC on my phone, few questions

[tekniq]

I downloaded VNC on my iphone and have EQ running on my computer at home as well as other programs. This is remote, so I'm not in the same network so the question I have is regarding data usage. Is this using up a lot of data on my iphone if I'm passively checking EC or is this minimal since it's only grabbing images from my screen? Last thing I want is to go over my 6G data limit for the month.

Thanks!