From GEE Technologies:
LockBox lets you store and protect sensitive info such as credit card numbers, bank accounts, passwords, pin numbers, private notes, and any other secret information on your iPhone or iPod Touch. New. You can export/backup data securely via a WiFi connection to your computer. Remember to do this regularly. Looking for more? The Pro version is now available as well. The new Pro version will feature bulk data importing, stronger encryption, no ads and unlimited sub-fields per entry. New: Check out our new, fun photo sharing app called Rotzy. Use it to keep information handy and also protected at the same time. All data is encrypted and protected by your secret code, so only you have access to it, even if you let your friends borrow your phone to make a call or browse online. This is the kind of information that you want easy access to while you are on the go, but find it hard to recall just when you need it. For example, I always forget my bank account number right when I need to deposit a check at the bank. Best of all, its free. Important backup information: remember to sync and do a backup of your data through the LockBox app before updating to newer versions. You never know what might happen to your phone in the middle of a sync : -) Also, the iTunes backup is not enough in some cases especially when you have to replace your phone or reset it, so make sure you use the WiFi backup method to protect your data. Its the only way to make sure your data is safe when doing a sync or restore for your device.