Power Applock

If you want to keep your apps and important docs away from prying eyes, Power Applock can help you do it. This app can strictly limit access to your info so that nobody can snoop around on your device.

Power Applock's management of your installed items makes it easy to hide all sensitive communication with just a click. This is possible thanks to the structure the app uses to catalogue your tools: 'Important,' which covers apps where your chats might be found, like Facebook or WhatsApp; 'System,' for apps focused on device operation; and, finally, all other installed items on your memory.

You can set the lock to apply to full categories of just individual apps. In each of the two cases you can set restrictions like a PIN or a lock pattern. If you want to remove all locks just tap the unlock icon, but if you want to do it for one or a couple apps only you'll have to insert the pattern or PIN for each one.

On top of all this you can make Power Applock invisible to keep anyone from finding the app and stealing your PIN with the secret code that lets you access the device in case you forget the PIN.