Google Google's Family Link app lets parents hand down their old Android gadgets to their kids without worrying about what they could end up downloading from the Play Store or finding online. They just have to create a Google account for their kids and download the app, which went public today. Until now , parents had to request an invite and hope that Google followed up. Family Link allows parents to approve or block apps that their kids want to download from the Play Store, monitor their screen time and the apps they're accessing, set device time limits, and remotely lock their kid's device for bedtime or studying. Google is directly targeting Amazon and its kid-friendly Fire tablets with Family Link. Amazon's tablets always let parents set screen time limits, and it recently began letting parents retrieve more granular data on the apps their kids are using and even the books and websites they're accessing. It also launched a new parent-oriented...