| Price from | Free | $59/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 4 |
| Spec score · Diagram Software | 7.7 (#27) | 8.4 (#10) |
| Spec score · Diagramming Software | 7.7 (#37) | 8.3 (#19) |
| Spec score · Diagramming tools | 7.2 (#41) | 8.0 (#31) |
| Diagram types | Entity-relationship diagrams; UML diagrams; flowcharts; network diagrams | Infrastructure,security group,list,container,hybrid cloud |
| Free plan | Yes | No |
| Support | For problems, the site directs users to its FAQ and Dia bug reports. | Hava says visitors can contact a real person through its website chat for product questions. |
