Downloading md5pp for OSX 0.2 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The application lies within System Tools, more precisely File Compression.
From the developer:
md5App is a utility for getting the md5 checksum for a file or group of files. It is often used as a way of verifying the integrity or authenticity of a downloaded file.
You may want to check out more Mac applications, such as MPlayer OSX Extended, Same OSX or ADB File Browser OSX, which might be related to md5pp for OSX.