A free program for Android, by Pinnacle Labs.

Wifi Hotspot Tethering Wi-Fi is a free utility to help you create a hotspot connection. It can be used to connect two or more devices to the Internet through a wireless local area network (WLAN). In order to use this app, you need to install it on your Android phone or tablet first. It is a simple and user-friendly app that allows you to turn on or off your Internet connection with just one click. The app has been designed to work with Android phones and tablets. It is a free app and does not need to be paid to use.