The arrival of iOS 12 means you can now use Apple's long-awaited suite of Screen Time tools. The new features, which appear under Settings > Screen Time, are designed to give you a better idea of how you're spending time on your phone and limit the time you spend on certain apps. It’s all part of a greater push by tech companies to mitigate the ways personal devices are engineered to be addictive, by creating all kinds of new “digital wellness” features.