Your best bet would go to the store and speak to them, there are any number of things that can effect the price of the switch over such as, are you eligible for a hardware upgrade, promotion available in your area. Also if your lg is not a smart-phone, then you will have to upgrade to a data plan. be forewarned Iphones use much more data then a regular smart-phone to do the same things. So research the plans before you go in, else-wise the dealer will try to hook into whatever there pushing at the moment, which may or may not be good for you.