Bad News...
Due to infrequent sales and technical issues that would cost too much to fix, the full version of the "Open" version of e-AA has been discontinued. This means there is no full version of e-AA for Mac or Linux as there was in the past. The focus these days is on apps for phones and tablets.
You are welcome to try our free 'lite" version of e-AA which may work on Mac or Linux but comes with no tech support or guarantee it will work on your system.