https://www.theverge.com/2018/11/20/18104987/google-digital-wellbeing-pixel-android-9-pie-exit-beta-features-now-available

Google’s Digital Wellbeing features, designed to help you more responsibly use mobile software and prevent distractions, have officially exited the beta phase and are now available for all Google Pixel phones running Android 9 Pie, per 9to5Google. Android One devices are also receiving the features, which can be found under the Android settings menu once you download the Digital Wellbeing app from the Google Play Store. (If you signed up fro the beta, your version of Digital Wellbeing will update automatically.)

Like Apple’s Screen Time dashboard, these new Android features include counters for how long you’ve been using certain apps, the ability to restrict usage, and graphs and visuals detailing how many times you unlock your phone per day and how many notifications you receive, among other metrics. There’s also Wind Down, a unique feature that limits notifications before you go to bed and also gradually makes the display a greyscale blend of black and white, to make it easier on the eyes and to encourage you to unplug.