Wirelessly posted (BlackBerry8320/4.2.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/100)
You wanna know for sure??? Use the program for 2 or 3 days and lookup you're current usage history on t-mobile.com.... You'll see either a lot of sms usage or high data use.. Then you know for sure
but yeah like I said it uses data...