OmniGraffle vs StarUML
| OmniGraffle | StarUML | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | Yes |
| Paid from | — | $129/mo |
| Open source | No | No |
| Platforms | macOS, iOS | extension, Linux, macOS, Windows |
| Free plan | No | No |
| Diagram types | family trees, flow charts, org charts, layouts, directed graphs, nondirected graphs | UML 2, entity-relationship, data flow, flowchart, mindmap, C4, SysML, BPMN, UI wireframe, AWS architecture, GCP architecture, Azure architecture |
| Real-time collaboration | — | Yes |
Both are listed in Best Diagramming Software, Best Diagram Software. On Samsung Mobile US Press, OmniGraffle scores higher on our published basis.