Black Cat Systems

Free
Mac emulator under development.
Free
MySdrPlayback makes it easy to search recordings for interesting signals.
Tool to examine network settings on your Mac & LAN
Free
Display loggings from other listeners on the cluster screen in real-time.
Free
Drivers for the GM-10 & GM-45 devices
Free
Cocoa RTL Server is an app that interfaces with an RTL dongle.
Free
Cocoa1090 is a Mode S (ADS-B) aircraft transponder decoder.
Free
iUnit is a unit conversion program for the Macintosh and Windows.
Free
Label Wizard lets you create your own custom sheets of labels.
Free
Create your own custom PDF files, containing text and shapes.
Free
graphing tool tracks health-related measurements
Free
Keep track of what foods you eat each day, and their nutritional value.
Free
Health Tracker helps you keep track of and graph any health related measurement.

Rad

Free
Rad software provides graphing, scaling, integration, trend line, statistics, timestamps, and more for GM-10 and other radiation detectors.
Free
Diet Sleuth is one of the most complete diet software programs.
Free
SelCall generates Selective Calling Tones, incl.
Free
We don't have a description for the Mac Grayliner app yet.
Free
sample tests help prepare for written ham radio exams
Free
periodic table with detailed physical/nuclear info
Free
Train for ham radio exams in the written form.