effmass vs FDTDX
| effmass | FDTDX | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | Linux, self-hosted |
| Free plan | Yes | Yes |
| Delivery mode | — | desktop |
| Lesson library | — | No |
| Authoring tools | — | Yes |
| Assessment tools | — | No |
| 3D visuals | — | Yes |
| Data export | — | Yes |
Both are listed in Best Physics Simulation Software. On Specifiction, FDTDX scores higher on our published basis.