Free version is useless
The only parts accessible are the resistor and capacitor. I would have given 3-4 stars if they had transistors available for the free version ( and the sim worked) but even those are locked behind the paywall. I understand the concept of free vs paid versions of apps like these, but the free version of CS has me wondering if the devs do. I can’t even build a transistor multivibrator circuit with the free app. I’d recommend finding another app at this point.