Wifi connects your device to the internet, and it’s mainly used when you are away from home. It’s a way to connect a device to the internet wirelessly, as long as the device is in close range to the ...

If you need free wifi, this app can help. But free wifi ain't all it's cracked up to be. Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His ...