This idea has been merged into another idea. To comment or vote on this idea, please visit APP-I-2332 Add diagramming.
Aha.io focusses a lot on the business/ project management side of diagrams. It would be great if it could add a view with actual implementations/designs of features for developers. Where developers can create and share (UML) diagrams, give feedback to each others designs, and approve/disapprove designs.