| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | — | Yes |
| iOS | Yes | — |
| Self-hosted | — | Yes |
| Plans published | 3 | 1 |
| Spec score · Physics Simulation Software | 8.2 (#25) | 8.6 (#12) |
| Audience | The maker describes Algodoo as a tool for students and children, for science classes, and for children learning physics at home. | The project presents FDTDX for research, development, and commercial use in photonic nanostructure simulation and design. |
| Authoring tools | Yes | Yes |
| Delivery mode | hybrid | desktop |
| Free plan | Yes | Yes |
| Lesson library | Yes | No |
| Purpose | Algodoo is 2D simulation software for making interactive scenes, exploring physics, building inventions, designing games, and experimenting in science classes. | FDTDX is an open-source Python package for simulating and designing three-dimensional photonic nanostructures with the Finite-Difference Time-Domain method. |
| 3D visuals | No | Yes |