Avira AppLock+ for Android is a useful app for locking up important sections of your device keeping them safe.If you ever lend your device to a friend, child, co-worker etc., you will not need to worry about them stumbling on to something private as you can lock up it requires a PIN code to access specific items that you choose, such as Skype, WhatsApp, Facebook, browsing history of most mobile browsers like Chrome, Firefox or Opera, personal communications and more.Avira AppLock+ for Android has a nice feature that allows you to schedule a time for the lock to engage, like during times when you are at work, or when it's time for kids to go to bed. This utility will keep you in control of your device even when your device is not with you.