There's easily a bazillion Android apps out there, all accessible via Android's Google Play Store. Although most are harmless, keeping kids away from adult only apps can only be a good thing.
Doing this involves creating "Restricted Profiles", which are essentially user accounts which give parents control over which apps are accessible.
Doing this is actually pretty easy: Go to Settings > scroll down to "Users" > tap "Add user or profile" > set up which apps to enable for your kids and choose which apps the wee ones have access to.
2: Shop safely
Sadly there are also dodgy apps out there masquerading as legitimate games. In-app purchases can quickly result in little Johnny or Joanne emptying your credit card to purchase all sorts of virtual goodies. This is thankfully easily avoidable.
Simply turn on "Password" in the Play Store so you can prevent your kids from buying apps. Once this is enabled, your kids will be asked for a password whenever they attempt to make a purchase.
Doing this is simply a matter of tapping the "Play Store" icon then the setting icon (looks like three dots lined up vertically) to choose "Setting" > scroll down to find "Password" and activate, entering in a secure password.
3: Keep tabs on your kids' hardware
Having lost my own fair share of smartphones, I can safely attest to the fact that tablets and smartphones are dead easy to lose. Thankfully they're also easily found using the Android Device Manager.
This free app can use your device's GPS to locate Android smartphones or tablets on a map and allows you to remotely "Ring" the device with its volume on full for 5 minutes (which is a great way of figuring out which sofa cushion you've left it under, or startling the bejesus out of pets). With the Android Device Manager app you can also remotely reset the device password, or even wipe all data on the device.
4: Play it safe when searching
It's easy enough to innocently discover unsuitable content using some pretty innocuous search terms so keeping inappropriate search results out of sight is a must do.
To do this, simply turn on SafeSearch, which will keep unsuitable search results from appearing.
Doing this this is as easy as tapping Settings > scrolling down to "Accounts" > "Google" > and then tap "Search" > find "SafeSearch filter" and activate. You'll know it's turned on when you see colourful circles around the Google search box.
5: Safetube
Sometimes the boobtube can be well "ahem" just that, which definitely isn't a good thing for young eyes.
Keeping YouTube family-friendly is however a simple matter of activating Safety Mode on the YouTube app which will filter out mature content or that have age-restricted content, so they will not show up on your kids' tablet or phone.
Doing so will also hide inappropriate comments. To do this fire up the YouTube app > tap the setting icon on the top right corner (looks like 3 dots lined up vertically) > "Setting" > "Search" > "SafeSearch filtering" and then tap on "Strict."