A free program for Android, by Easy way inc..
Free Internet Wifi Connect – Internet sharing is an app for Android that lets you share your internet connection with others. The best thing is that this is completely free and easy to use. The application works in two different modes: Wi-Fi and Cellular. You can use either one or the other, but not both at the same time.
You will be able to share your internet connection with other users in the community. You can choose to share with your favorite networks, so they will get priority in the service. The application will connect you to the network with the best signal.