The 2.1 version of Maltego CaseFile for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The application relates to Business Tools. 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. This free Mac application is an intellectual property of Paterva.
From the developer:
CaseFile is the younger brother to Maltego. It is essentially the same graphing application as Maltego without the ability to run transforms. The program gives you the ability to quickly add, link and analyze data. The app targets a unique market of 'offline' analysts whose primary sources of information are not gained from the open-source intelligence side or can be programmatically queried.
You may want to check out more software for Mac, such as Maltego Classic, Mystery Case Files - Return To Ravenhearst or Mystery Case Files - Dire Grove, which might be related to Maltego CaseFile.