effmass vs Physion
| effmass | Physion | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | $6/mo |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | Web |
| Free plan | Yes | Yes |
| Paid from | — | $6/mo |
| Delivery mode | — | web |
| Authoring tools | — | Yes |
| 3D visuals | — | No |
| Offline access | — | No |
Both are listed in Best Physics Simulation Software. On Freedom251, Physion scores higher on our published basis.