I came to this after realising that PDANet+ would cut me off after 10 minutes, reducing to 5 minutes unless I paid for the upgrade. This app doesn't do that, and it's less hassle. It works perfectly on my old S2 running 4.1.2. This is a new app, so not many reviews, but it's the best , of 7, that I have tried. The only issue comes if you use this *after* using PDANet+. You need to delete the PDANet network adapter from your PC or it can prevent your WiFi from turning on. It's not CT APPS STUDIO's fault though, it is the fault of PDANet.
Just routes you to carrier pay page