How to i turn off the games that need internet connection on iphone 5?

I just got the iphone 5 on contract and it should be here soon but the thing is you know them game's like sims freeplay that need internet connection how do i turn them off when i'm out while i'm at home it's fine i have Wi-Fi but when i'm out how to i turn them off too prevent from using up my 2gb internet data and being charged is there a way i can turn them off? While still receiving phone calls and texts?

Double click the circle in the middle then click the red line button on the top of each apps that will appear. Better yet sign it off.

You can turn off mobile data however that means you can't use the Internet when you are out

I didn't think they use Internet while you are out and about and they certainly won't use up anything of a 2GB connection trust me, I think you are underestimating the size of 2GB and how little data something like the Sims Freeplay uses… But you can turn off downloading on 3G/4G in the settings and you can still use the Internet and mobile network, Internet when you use it manually, texts, phones calls etc…

But seriously, let it use the network, you can have extremely heavy use on a contract phone and still have 1GB left at the end of the month. I have a 1.5GB contract and trust me, you really shouldn't think about it unless you download on it or you just won't get your value for money.

Go here to find out how to turn off downloading on 3G/4G http://www.pcadvisor.co.uk/how-to/mobile-phone/3276632/how-turn-off-3g-data-on-iphone/

Double tap the home button, then touch the little red badge on the upper left of the icons for the games you want to stop, which will appear at the bottom of the screen. This terminates the applications, making it impossible for them to communicate with the Internet. You can also turn off things like push notifications for specific applications in the Settings area of the phone, but that prevents the games in question from working with the Internet at all.

Normally, apps should not be talking to the Internet when they are not on the screen, even if they are still in the system.