help

[cobra85ec]

hey every one i need a little help,..
i just download a app called lockdown...
it let u set a password to lock any app without hiddin then..
so i was testing it out and i set a password the lock my sms.app.
so after it respring and it try to open sms.app it ask for my passwod i put it and it work.. so i try it again and try the wrong password it did not let me in which is good... but here is the problem when it ask for the password i press the home button now i can see any of my apps... all it show its a lock with keys....i try restarting the phone a few time same thing...