- Experts recommend that you should use different, strong passwords for every site you visit. - The problem is that if you visit many different sites, it is hard to remember all the passwords. - Password Calculator overcomes this by generating a strong reproducible password for each site you visit based on a generator that uses your username and the site name to calculate different strong unique passwords for each site. - Your passwords are not stored anywhere for security reasons and are calculated/encrypted in three different different locations, meaning greater security. - As a final security measure, even if someone guesses your username and selects the site name you might use, they still will not know your login details or who you are.