As a teacher, I love seeing all of the 1-star reviews by so-called parents, when it's abundantly clear that adolescents are taking a turn a review writing. I'm writing this review not only to offset the kids' reviews, but because this app has been possibly the most important one we've ever downloaded. Screentime has been invaluable for our family, especially on our Android devices. We set the amount of hours/day based on our son successfully addressing his responsibilities (school, chores), and give him the freedom to do what he wants with his time. But when his time is up, it's up. There are no negotiations, no arguments. Occasionally, he'll ask for something to do that might earn him extra time, and that's always considered. It should be noted that on Apple devices, however, this app (or any other) is not nearly as efficient as on Android, which is entirely driven by Apple refusing to allow one app to control another (individually). Apple knows that your kids want iPhones because it is very hard/impossible to monitor them or control the amount of time that they are on their iPhones. Apple does not have a business interest in allowing Screentime to perform well on Apple devices. But on Android, this app shines. If you're a parent hoarse from the last shouting match you had with your child about the unfairness of having only 8 hours a day on gaming sites, then do yourself a favor and try Screentime for Android.