How to Lock Down Your Childs Android Tablet

Android's version of Single-App Mode, known as Screen Pinning
(Android 5.0 Lollipop)

By using Screen Pinning, you can lock an app open so your child or any other person cannot exit or change without knowing a PIN number, which you set. 

To enable this feature:

• Open Settings on your tablet
• Open the Security options
• Scroll to the Advanced section and depending on your device choose "Pin windows" or "Screen pinning."
• Tap on the slider in the upper right of the screen to enable the feature.
• Open the app you want to "lock" open for your child to use.
• Tap on the designated button on your tablet that shows all the running/open apps, then slide the current app up until you see the "push pin" icon in the lower left of the screen.
• Tap on the push pin icon.
• A dialog box asking if you want to turn on Pin windows and how to disable it will appear. 
• Choose "No, thanks" to cancel or "Start" to use.

I would recommend enabling a PIN or use Fingerprint access for the ability to disable screen pinning, otherwise it will display on the screen how to get out of it.  If you don't have this option, it is most likely because you don't have a passcode of some sort which unlocks the device when the tablet is powered on or awaken from sleep.


Enable the Guest Account
(Android 5.0 Lollipop)
The guest account is an account that has very limited access and is completely disposable.  Unlike actually setting up another user for the tablet and restricting those settings, the guest account will

• Open Settings on the tablet
• Open the Users option
• Tap on Guest
• The tablet will immediately switch users, your work in progress and activities are not altered by this, process the mini-setup functions, 
• you can either sign-in a Google account when prompted or click Skip.
• type in a user name if you want
• Once the mini-setup is completed, the tablet will load to the home screen.

When you no longer need the Guest account, go back to the Users options in Settings and tap on "Delete guest profile."  This will delete the profile, along with all downloaded applications and data.  Once deleted, the data from the guest profile cannot be recovered.  The tablet will return control back to the primary user account.