This document discusses how to configure a SharePoint 2013 environment to support hosted apps. It covers: 1. What apps are and how they work in SharePoint 2013. Apps are standalone pieces of functionality that can be hosted locally or in the cloud. 2. The steps to configure an on-premises environment for apps, which includes setting up web applications, DNS records, required services, and the app and subscription settings. 3. Tips for managing apps, such as configuring the app catalog, common issues like apps not supporting Kerberos, and backup/restore considerations.