Visio Files and ConceptDraw
Visio Files and ConceptDraw. ConceptDraw PRO is compatible with MS Visio .VDX formatted files.VDX is Visio’s open XML file format, and it can be easily imported and exported by ConceptDraw PRO.DroidDia prime
Droiddia allows you to make flow charts org charts venn diagrams mindmaps and do other diagrams with no constrains and as little effort as possible.-  UML  Activity  Diagram  |  UML  activity  diagram  (swimlanes) -  Template  ...
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