Lockdown Pro, a jailbreak app, gives you the ability to password protect your iPhone apps. It is compatible with iOS 4 or later. It is not free and if you want it your pockets will be lighter by $1.99. It is available on Cydia and Rock Your Phone store. The creator of Lockdown Pro is ipodtouchmaster who had previously released Lockdown for iOS 3.

FOR : Cool Graphics, Great Functionality
AGAINST : Not Free, Jailbreak App
VERDICT : A great app! Must Buy

Key features of Lockdown Pro are:

*  You can choose between alphanumeric and numeric passwords.
*  You can setup different passwords for individual apps.
*  Delay lock feature : When you unlock an app it will also unlock other locked apps until you lock your iPhone.

Another app similar to Lockdown Pro is Locktopus, available on Cydia, which also allows you to password protect your iPhone apps.But we would still prefer Lockdown Pro over Locktopus .

Please feel free to comment.