MacSim 4.0 for Mac can be downloaded from our website for free. The application's installer is commonly called macsima4.zip. The actual developer of this free Mac application is fracturedSoftware. The following version: 4.0 is the most frequently downloaded one by the program users. MacSim for Mac lies within Productivity Tools, more precisely General. This free app works fine with Mac OS X 10.5 or later.
From the developer:
MacSim is a simple AVR simulator for Mac computers.
You may want to check out more software for Mac, such as Surface, Mountee or WeatherScope, which might be related to MacSim.