Downloading safeThis 1.6 for Mac from our website was free. This free software for Mac OS X is an intellectual property of com.jaanpatterson. SafeThis for Mac lies within Security Tools, more precisely Personal Security.
From the developer:
Creating Encrypted Disk Images.
You may want to check out more Mac applications, such as TelnetLauncher or Tiptoe, which might be similar to safeThis.