Altium Designer vs ngspice
| Altium Designer | ngspice | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | Web, Windows | Linux, macOS, self-hosted, Windows |
| Free plan | No | Yes |
| Schematic capture | Yes | No |
| Electrical simulation | basic | advanced |
| Standards libraries | Yes | Yes |
| MCAD integration | Yes | — |
| Deployment | hybrid | desktop |
Both are listed in Best Electrical Design Software. On Everything Xiaomi, ngspice scores higher on our published basis.