Does it cost going on instagram?

[934]

Can someone help me? I have an iphone and I never go on the internet, I only use four apps. 3 of them are games: Temple Run, Doodle Jump Lite and Fruit Ninja Lite and as far as I know they're NOT connected to the internet. But instagram is, right? So does it cost me going on instagram? Because somehow I keep getting charged and I don't know why. Does instagram cost? Or does going on the apple store cost? Cause I can't explain myself where else my money is going?

[RS]

If you went on the apple store and checked you'd find that instagram is a free app and so is safari and the app store and everything that has something to do with wifi - its not like a phone where you have to pay for internet or whatever. You are probably getting charged if you bought something through the in-app purchase