In this post I want to share an unusual, nevertheless interesting conceptual idea of loading content from SharePoint 2013 apps on many pages. The original awesome concept was proposed and developed by my colleague Martin Villysson at Bool. The problem we are trying to solve SharePoint apps are great to extend functionality in SharePoint and integrate other systems (full page apps available through Site Contents), they also provide tools to enrich the default SharePoint experience by App Parts (Client Web Parts) and Custom Actions (additional menus).