The document discusses various topics related to apps, including how to export material to other apps, popular app sites, types of apps, productivity apps, reasons why apps have become important, and apps for making creative presentations. Popular app sites include the Windows Store, Google Play Store, Samsung Apps, Apple App Store, and Blackberry Apps. Types of apps include native apps designed for a specific OS and multi-platform apps that work across various OSs. Popular productivity apps mentioned are OpenOffice, Google Drive, Microsoft Office Online, iCloud, Evernote, Gmail, and Dropbox.