Decired:
Or is it pointless when i am using an app created for project and only i have that app.
Think about it, and conclude that it very likely is pointless. However, seeing that your paranoia has clearly gotten the better of you, you can employ a four-character password of your own making, so you really ought to, and then you can sleep a little better on the strength of it. Just make sure the boogie man or the terrorists don't come in and steal the password from under your mattress.