JDet 1.4.8 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.
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 Education Tools, more precisely Science. This free Mac application is an intellectual property of CNB-CSIC.
From the developer:
JDet is a multiplatform software for the interactive calculation and visualization of function-related conservation patterns in multiple sequence alignments and structures. It contains the set of tools and features developer considers critical for the daily work with this kind of data, and that previously were disseminated in different packages and web servers.
You may want to check out more Mac applications, such as sciatrope, Analytics to Earth or TreeView X, which might be similar to JDet.