Download of QJackCtl 1.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program lies within Audio & Video Tools, more precisely Music Production.
The actual developer of this free software for Mac is Rui Nuno Capela. The following versions: 1.0 and 0.3 are the most frequently downloaded ones by the program users. The unique identifier for this program's bundle is com.yourcompany.qjackctl. 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.
From the developer:
QjackCtl is a simple Qt application to control the JACK sound server daemon, specific for the Linux Audio Desktop infrastructure.
Written in C around the Qt4 toolkit for X11, most exclusively using Qt Designer.
Provides a simple GUI dialog for setting several JACK daemon parameters, which are properly saved between sessions, and a way control of the status of the audio server daemon.
You may want to check out more software for Mac, such as TwistedWave, BFD2 or PitchPerfect, which might be related to QJackCtl.