Download of SynHXD 0.4 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. 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. SynHXD for Mac is categorized as System Tools.
From the developer:
SynHXD is a Unix Hotline Server software package capable of operating under Mac OS X. It supports many features, such as automatic file and folder commenting, file search function, bandwidth control, and mail. Many more features can be enabled during the configure process.