Has KanBo been built using the Microsoft Standards (or other) ?
Here our architecture stack of KanBo: http://community.kanbozone.com/topics/56-kanbo-architect-stack-diagram/
KanBo is being developed according to these Microsoft Standards:
https://dev.office.com/sharepoint/docs/sp-add-ins/sharepoint-add-ins (Provider Hosted App)
A limited and older version of KanBo App was also certified by Microsoft and published in the world wide Office Store here: https://store.office.com/en-us/app.aspx?assetid=WA104379835