A couple of years ago, Kevin Holesh, an app developer, decided that he wasn’t spending enough time with his family. The culprit was technology, and his smartphone was the biggest offender. Holesh wanted to know how much time he was spending on his phone each day, so he designed an app called Moment. Moment tracked Holesh’s daily screen time, tallying how long he used his phone each day. I spent months trying to reach Holesh because he lives by his word. On the Moment website, he writes that he may be slow to reply to email because he’s trying to spend less time online. Eventually, after my third attempt, Holesh replied with a polite apology and agreed to talk. “The app stops tracking when you’re just listening to music or making phone calls,” Holesh told me. “It starts up again when you’re looking at your screen — sending emails or browsing the web, for example.” Holesh was spending an hour and fifteen minutes a day glued to his screen, which seemed like a lot. Some of his friends had similar concerns, but also had no idea how much time they lost to their phones. So Holesh shared the app. “I asked people to guess what their daily usage was and they were almost always 50 percent too low.”