QuickBlox is a cloud platform that provides ready-to-go server modules to give apps powerful features like chat, location services, content management, and more. The document describes QuickBlox modules for location, ratings, content, chat, users, and messaging. It also discusses how QuickBlox can provide scalable cloud infrastructure on Amazon AWS. Case studies show how QuickBlox was used to power features for apps like cross-platform communication, on-demand content streaming, and geo-located competitions. The document promotes QuickBlox's integration with advertising and analytics solutions and ability to build mobile social apps and games.