Steam: 78% positive reviews out of 675. $8.99. Windows-only, though the website says “CRUMB is available for iOS and Android along side its desktop counterparts on Windows and MacOS.”
https://store.steampowered.com/app/2198800/CRUMB_Circuit_Sim...
No affiliation.
interesting. how does this compare with more "industrial" sims like "proteus" https://www.labcenter.com/simulation/ ?
No affiliation with any. I'm a Comp.E in consumer electronics who likes to keep a pulse on these things.