The following is a list of Google Apps for iOS (from Google, Inc. and third parties). This list is exhaustive and includes several apps that are not on the infographic Guide to Google Apps for the iPad. Some of these have natural classroom integration, and some are more for personal or business use. Some are optimized for both iPad and iPhone, some are only optimized for iPhone. Each app title is linked directly to the App Store so you can click directly from your device to download each app.
Via John Evans, Elke Lackner, Juergen Wagner