How to lock your WhatsApp, SMS, Contacts, Gmail, Gallery, Facebook on your Android using AppLock

AppLock is a lightweight app that lets you lock almost any type of file on your Android. AppLock can lock WhatsApp, SMS, Contacts, Gmail, Facebook, Gallery, Market, Settings, Calls and any app you choose, with abundant options, protecting your privacy. When Applocks your applications, nobody can access or uninstall them. You can also lock videos, contacts and individual messages, which is one of the most basic features about it.

How App Lock Work

The application works in a very simple way. First, you have to create a numeric password to unlock the application you want to protect. From that moment on, every time that app is opened, it will require you to insert the password you have defined. Even if another user tries to uninstall it, this password window will not allow it.

Related Post:

Another good thing about this app is that you can even hide its icon so nobody knows that you have it installed on your device, though they'll figure it out if it asks them to insert the corresponding password.

Another interesting feature is called Picture Vault, which lets you keep some pictures in a virtual safe, and only you can open it.