sci2 1.0 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. The software is categorized as Education Tools.
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 following version: 1.0 is the most frequently downloaded one by the program users. The actual developer of this free Mac application is Cyberinfrastructure for Network Science Center.
From the developer:
The Science of Science (Sci2) Tool is a modular toolset specifically designed for the study of science. It supports the temporal, geospatial, topical, and network analysis and visualization of scholarly datasets at the micro (individual), meso (local), and macro (global) levels.
You may want to check out more Mac applications, such as ScienceMatrix, Geometer's Sketchpad 5 or Enzyme X, which might be similar to sci2.