CRUMB Circuit Simulator is described as 'CRUMB is an immersive interactive 3D Circuit Simulator that can be used as a learning educational tool or a prototype workspace for electronic development' and is a circuit simulator in the education & reference category. There are six alternatives to CRUMB Circuit Simulator for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best CRUMB Circuit Simulator alternative is Fritzing. It's not free, so if you're looking for a free alternative, you could try Wokwi Arduino Simulator or UnoArduSim. Other great apps like CRUMB Circuit Simulator are Proteus PCB design, NI Circuit Design Suite Power Pro and Multisim.