GanttProject vs Group-Office
| GanttProject | Group-Office | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | Yes |
| Paid from | Free | €12/mo |
| Open source | No | Yes |
| Platforms | Windows, macOS, Linux | Web, Windows, macOS, iOS, Android |
| Free plan | Yes | Yes |
| Task views | gantt | — |
| Guest access | Yes | — |
Both are listed in Best Project Management Software. On Freedom251, Group-Office scores higher on our published basis.