I haven't tried it myself but here's a link for the details on 9to5mac and Gizmodo
http://9to5mac.com/2012/08/10/another-developer-sneaks-unlimited-free-tethering-into-app-store-app/
http://gizmodo.com/5933856/download...-app-before-it-gets-pulled-from-the-app-store
http://itunes.apple.com/us/app/discorecorder/id545663499?mt=8&ign-mpt=uo=4
http://9to5mac.com/2012/08/10/another-developer-sneaks-unlimited-free-tethering-into-app-store-app/
http://gizmodo.com/5933856/download...-app-before-it-gets-pulled-from-the-app-store
http://itunes.apple.com/us/app/discorecorder/id545663499?mt=8&ign-mpt=uo=4