If you use the Internet regularly, you've probably made lots and lots of user accounts for different websites, each with its own password. The purpose of Silverlock, then, is to keep track of them for you.
The application also includes a useful feature where you can store additional information for each account, such as your answers to security questions in case you need to recover your details.
Silverlock is a useful application for anyone who has a lot of passwords to remember and needs a good way to keep track of them. Luckily, Silverlock's simple interface makes this incredibly easy.