The 7.0.1 version of Mars24 for Mac is provided as a free download on our website. The program lies within Education Tools, more precisely Science. This free Mac application was originally created by NASA Goddard Institute for Space Studies.
From the developer:
Java-based application which displays a Mars "sunclock", a graphical representation of Mars showing the current sun- and nightsides of Mars, along with a numerical readout of the time in a 24-hour format. Other displays include a plot of the relative orbital positions of Mars and Earth and a diagram showing the day's solar path for a given location on Mars.
You may want to check out more Mac applications, such as iRNAi, Gee or Solar Eclipse Maestro, which might be related to Mars24.