JkPassword is an iPhone tool which encrypts and decrypts your passwords and info on your phone's web browser. The makers of JkPassword wanted to replicate Treo's password functionality and bring it to the iPhone as it was lacking. In order to bypass Apple's ban on third party apps, JkPassword works through your browser, so you needn't worry about having it erased with updates. It uses Advanced Encryption Standard to encrypt and decrypt your information, keeping it safe and secure. The only info sent to the site are your categories and the number of passwords you've chosen to encrypt. All communications from your browser and the site are also encrypted over 128 bit SSL as an added security measure. The free version allows up to 8 passwords and an unlimited number of categories; for less than a dollar a month you can up your password number infinitely.