Internet costs with an iphone?

[Scarlett]

I use Plusnet and am on the cheapest tariff which means I get very little internet per month. Last month my bill was a lot more - is this because I now have an Iphone?! My Iphone, when wifi is on, must be connected to my modem, even though I am not using it. Will this therefore use up more of my allowance?

[Count-A-Strong]

If you surf via wi fi this should cost nothing as your not using your phones network.

[ChuckFickens]

I think the point of the question was they are going over their home broadband allowance since getting the iPhone.

the phone will only use the internet if you have something enabled on it that uses the internet, have you got it set to check your email every few minutes? if so you might want to turn down the frequency of the check. (not that checking emails should use much)

You could turn of all other devices that use your router (it's a router not a modem) and then watch the lights on it with just the iPhone connected, if the lights are flashing a lot then something you've got on the phone is using the internet.