app4mac has released SecretBox 2.1 (http://www.app4mac.com/secretbox.html) for Mac OS X, an update of the app that allows you to keep your secrets in a safe place and uses 256-bit AES encryption to protect your data.
Version 2.1 offers a new Import Assistant. Now you can import data from the 1Password Interchange format. There’s also an improved user interface and enhanced search function.
SecretBox for the Mac requires Mac OS X 10.5 (“Leopard”) or Mac OS X 10.6 (“Snow Leopard”). It costs US$35, though version 2.1 is a free update for registered users of version 2.0. SecretBox for the Mac can also sync with the $4.99 iPhone/iPad version.