Deploying mobile apps on Android devices This section contains information to create a mobile application to be deployed on Androidâ„¢ devices. Directory structure for GMA appsPlatform-specific rules need to be considered when deploying on Android devices (GMA).Building Android apps with GeneroGenero provides a command-line tool to create applications for Android devices.gmabuildtoolThe gmabuildtool is a utility to create and test applications for an Android device.