I was looking for application that can lock certain applications like messages, gallery, application manager, and so on. After did some searching and I found this security application — Advanced Device Locks.

Advanced Device Locks (ADL) is an application that can help you to protect certain applications that you want it to be private. This application will ask user to enter correct lock code before it can allow the user to use the protected application.

To use this application is easy. Open ADL and go to Options (Image 3). From there, you select Protect Applications and choose which applications that you want to protect. Once finished, press Done and ADL will ask for a lock code to accept the changes made.

The default lock code is 0000 but you can change it in ADL (refer to Image 2). After you entered the correct code, ADL will start protecting the applications. When the user want to open a protected application, ADL will ask for a lock code. It will only allow the user if the lock code is correct. If the lock is wrong, it will ask the user to enter the correct lock code again.

However, there is a flaw that I found in ADL. I protect my Gallery with ADL and I thought no one will able to open my photos. But there is a way if you really want to see what photos that I kept in the Gallery. You can do that from Themes.

While you are in Themes, choose Edit to edit the theme and in Wallpaper options, choose User Defined. Themes will open the Gallery and you will see the photos that are in it. But you can prevent this by locking Themes application. So no one can open Themes unless he or she enters the correct lock code.

As conclusion, ADL is really convenient and a must have application. If you want to secure and protect your application like messages, photo gallery and so on, you can choose ADL as your friend. Recommended!