Electronics Workbench is not available for Mac but there are some alternatives that runs on macOS with similar functionality. The best Mac alternative is Circuit Simulator, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Electronics Workbench and six of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to Electronics Workbench are QUCS (Free, Open Source), LTspice (Free), iCircuit (Paid) and Circuit Simulator (CircuitJS1) (Free, Open Source).
Most users think Circuit Simulator is a great alternative to Electronics Workbench.
The Quite Universal Circuit Simulator (QUCS) is an integrated circuit simulator allowing the simulation and graphical presentation of results of large-signal, small-signal and noise behavior in circuits.
This electronic circuit simulator is highly interactive giving the feeling of playing with real components. It's very helpful for experimentation and visualization. It's a desktop version of the Circuit Simulator.
Ngspice is a mixed-level/mixed-signal circuit simulator. Its code is based on three open source software packages: Spice3f5, Cider1b1 and Xspice. Ngspice is part of gEDA project, a full GPL'd suite of Electronic Design Automation tools.