Download of Monolog 1.15.3 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this free software for Mac is MarvelTechs.
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. The program lies within Productivity Tools, more precisely Mind-mapping.
From the developer:
Monolog is a native, locally-stored personal growth tool that preserves your notes, links, charts, and your thoughts in perspective. It is built to better structure, connect, and inspire ideas. It is not a traditional note-taking app. For some people, it could serve as a mind tool. For others, it is a unified representation of all personal thinking and learning.
You may want to check out more Mac applications, such as Santa's Gizmo or Liptikl - Cut-Up Word Shuffler & Creative Writing Tool, which might be related to Monolog.