Android: Using the Wi-Fi hotspot feature on your Android phone lets you use your mobile data on multiple computers or tablets at once. The problem is, a lot of carriers have restrictions to prevent you from sharing your mobile data for free. Computerworld has posted a couple of ways to work around that.
Also, these workarounds might not apply to every wireless carrier or device. But if it does and if you do plan to use this occasionally, and are willing to take the risk here's how you can do it:
1. Install a third-party power widget app. Computerworld suggests Extended Controls ($0.99), but you can try a free one like previously mentioned Elixir 2
2. Use the widget app to add a widget to your homescreen that toggles your hotspot Wi-Fi on or off. Turn on the Wi-Fi hotspot
3. Computerworld says that this workaround activates Android's built-in hotspot functionality, bypassing any menu-level modifications.
There's also an alternative app called FoxFi. It doesn't work with Android 4.1, though, and some carriers are blocking it from being downloaded, but you may be able to install it from an alternate location or with the QR code in the Play store.