Free hotspot apps for Android include Wi-Fi Hotspot Tethering and Mobile Hotspot. Wi-Fi Hotspot Tethering allows the user to configure when mobile data can be turned on or off. It also allows for control over Wi-Fi and Bluetooth settings.
Mobile Hotspot allows the sharing of mobile data with multiple PCs, tablets and other mobile phones. Configuration is simple, and mobile data is shared with one click. This app also has a timer to turn off the Wi-Fi hotspot as well as a means to conserve battery power. Using a Wi-Fi hotspot with an Android phone typically requires paying for a tethering plan with the phone's service provider.