This is the commercial "Diagrams for Confluence and Jira" product from the draw.io/diagrams.net team: native diagramming embedded directly in Atlassian Confluence and Jira, distinct from the free standalone draw.io web app.
Atlassian Marketplace app pricing (per-user, tiered by Confluence/Jira instance size): separate from the free standalone draw.io app.
Teams already living in Confluence/Jira who want native diagramming embedded in their wiki pages and issues, rather than switching to a separate diagramming app.
This is a different product from the free draw.io web app (diagrams.net): choose this specifically for native Confluence/Jira embedding; use the free standalone app for general-purpose diagramming outside Atlassian tools.
Draw.io is a diagramming tool for teams to create various charts, especially within Confluence and Jira.
