“That’s enough screen time for today,” you tell your kid, urging them to turn off the video-game console or iPad. As for what they should do instead, you are not quite sure. And what about you? If ...

Smartphones can be a force for good—for learning, entertainment, connection, saving time, you name it. But given how much we can do with the devices, it’s easy to overindulge and succumb to the kind ...

David Nield is a technology journalist from Manchester in the U.K. who has been writing about gadgets and apps for more than 20 years. He has a bachelor's degree in English Literature from Durham ...