I am using a T mobile Comet cell phone. Is there an app that allows me to connect my cell phone to internet through my laptop? I have used up my data plan for this month and for now, I have to pay for internet connection day by day for the cell phone. I have a laptop but I don't have wi-fi on laptop. I never set up the router and my wi-fi for the laptop is through cable TV company. So I just use a CAT-5 and connect my laptop to my modem directly. My laptop is using Ethernet connection. Do I even need an app for this?