Delete all my NSUserDefaults that start with a certain word

Question

Is there a way for me to \"walk\" through a list of all the NSUserDefaults in my iPhone app, and only delete certain ones?

For example, I\'d like to get

Answer 1

i Got solution for this just use it where you want to remove all sessions

 NSString *appDomain = [[NSBundle mainBundle] bundleIdentifier];
[[NSUserDefaults standardUserDefaults] removePersistentDomainForName:appDomain];

it will work