Download of soundjack 1.0 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 following version: 1.0 is the most frequently downloaded one by the program users.
The bundle identifier for this application is com.yourcompany.soundjack. Soundjack for Mac is included in Internet & Network Tools. This free software for Mac OS X was originally produced by Alexander Carôt. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. Soundjack.dmg is the most common filename for this app's installer.
From the developer:
SoundJack is a realtime solution for distributes communication. In the manual mode you need to specify the desired IP addresses and ports yourself. This is especially useful for scenarios, in which you want to connect machines within a local area network (LAN). In automatic server based mode type a username into the edit field and hit enter.
You may want to check out more Mac applications, such as IPNetShareX or AquaEthereal, which might be similar to soundjack.