BlackBerry's, like many smartphones, offer the ability to have apps running in the background. While the Messages, Phone, Browser and BlackBerry Messenger apps won't drain your battery or affect the performance of the handset, other apps may well do.

With this in mind we should you how to check which apps are running on your BlackBerry and how to close them down.

Step one
Press and hold the Menu button to see a list of apps running in the background.

Step two
You can't close the Messages, Phone, Browser and BlackBerry Messenger apps. However if there are any other apps running you want to close down, press the menu key again.

Step three
From the list of options displayed, scroll down and hit either Close or Exit depending upon what's available. This will quit the app for you.