Passwordprotect

With Mac App Blocker, you can password-protect EACH application on your Mac. Keep your apps and your Mac safe. Set a timeout value to automatically exit the protected application so even when you leave your computer unattended, you're still protected. Platforms: Mac

Kotivox is a diary application, which organizes your entries by date. You can mark paragraphs by categories you created and later search within those categories. Kotivox will encrypt and password-protect your data. It supports multiple users. Platforms: *nix