For Mac [patched]: Electronic Workbench Download

KiCad includes a schematic editor and a built-in SPICE simulator (ngspice). While it lacks the "drag and drop oscilloscope" of EWB, it is incredibly powerful. You can simulate complex analog circuits, view waveforms with precision, and then design an actual circuit board.

Here are some tips and tricks to help you get the most out of Electronic Workbench on Mac: Electronic Workbench Download For Mac