build123d vs Spline
| build123d | Spline | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | Yes |
| Paid from | Free | $15/mo |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | Android, Web |
| Free plan | Yes | Yes |
| Parametric modeling | Yes | Yes |
| 3D print export | Yes | Yes |
| Paid from | — | $12/user/mo |
| Platform access | — | both |
| Sculpting tools | — | Yes |
| Animation tools | — | Yes |
| Render engine | — | built-in |
Both are listed in Best 3D Modeling Software. On Samsung Mobile US Press, Spline scores higher on our published basis.