TeXwiz 2.0.1 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. TeXwiz for Mac lies within Productivity Tools, more precisely Office Tools. This free Mac app was originally produced by Nic Doeblin. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
TeXwiz is a document creation wizard for LaTeX documents that supports many features provided by KOMA script. It allows the user to access many basic and advanced options in a graphical user interface. While most LaTeX editors have similar built-in wizards, they usually only provide very basic functionality and prepare documents most authors would be able to create by heart.
You may want to check out more Mac applications, such as PitStop Extreme, 3dissue or FileOpenInstaller, which might be related to TeXwiz.