Download of SynergyKM 1.8.8 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 application lies within Internet & Network Tools, more precisely Network tools. This free Mac application was originally designed by Karl Timmermann. We recommend checking the downloaded files with any free antivirus.
From the developer:
SynergyKM is the Missing Mac GUI for Synergy. It brings up warning dialog if accessibility permissions haven’t been granted. Now shows IP and hostname in prefpane (no more switching to network panel to find your IP!). It saves server configuration if you switch to client mode and viсe versa, even after saving changes
You may want to check out more Mac applications, such as IPNetShareX, PPPoE Connector or tn3270, which might be related to SynergyKM.