Why didn't you just go for 1Password or KeePass? Both operate offline (unless you want to store your password database on something like Dropbox).
Also, why would I prefer your app over theirs?
My app doesn't store the database on the SD card where other apps can access it, Doesn't require any network permissions, Doesn't transmit anything to the cloud, Backs up in the actual database file and not just a useless CSV file. And it only costs 99cents compaired to others that cost like $4. Also it's design makes it simple and intuitive to use.
Here's 5 codes:
GYS5RY619U0TR67HTRXTK1P
6XKRFUWCVH1Q02GCLT08EEK
AADKLH3U66GXKQTTZNEJDTE
37UBUL4CW4NST0H46L7MXKG
SDGZ3SB7901MCRZZF81KRP8
Try it out for yourself and if you don't like it just uninstall it, I'm just looking for some reviews and to get the app indexed.