Put a Lock on Your Smartphone or Tablet
Lock your Android device with a PIN or password. After you activate the lock screen, you will be asked to enter the PIN any time you activate the device or attempt to make major changes, such as altering important Android Settings.
Create a New User on Your Device
Set up an Android guest account to allow or disallow access to certain apps on the device. By default, Android will block access to almost everything, including the Chrome browser, so you must manually select the games and apps your children can use. In the Google TV app, you can restrict access to content based on parental rating. If you have kids of varying ages, you can set up specific profiles for each of them that are age-appropriate.
Set Up Parental Controls in Google Play
You can restrict downloads from the Google Play Store so that kids can’t purchase content without your permission. The restrictions in the Google Play store extend to movies, music, books, and apps. To set up parental controls in Google Play:
Best Apps for Childproofing Your Android Device
Some apps allow you to set additional restrictions such as limiting screen time and restricting access to specific websites. For example:
AppLock lets you lock almost anything on your phone or tablet, including phone calls, individual apps, photos, and Google Play. Kids Place Parental Control displays only the apps children are allowed to open on their guest accounts. Screen Time Parental Control disables access to all apps after a specified time. McAfee Safe Family offers several childproofing tools, including a website blocker.