ngspice vs SimFlow
| ngspice | SimFlow | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | Yes |
| Paid from | Free | €666.67/mo |
| Open source | No | No |
| Platforms | Linux, macOS, self-hosted, Windows | Linux, macOS, Web, Windows |
| Free plan | Yes | Yes |
| Paid from | — | $8,000/mo |
| Delivery mode | — | desktop |
| Authoring tools | — | Yes |
| 3D visuals | — | Yes |
| Offline access | — | Yes |
| Data export | — | Yes |
Both are listed in Best Physics Simulation Software. On Freedom251, SimFlow scores higher on our published basis.