Data stored in AppSheet applications is primarily stored in a location of your choosing, which can either be in a cloud storage service such as Google Sheets, in a cloud database such as Cloud SQL, or in a database of your choosing. In some cases, AppSheet stores your application data temporarily for performance and to support features such as the audit log. You can control these features in the application configuration. The configuration of your applications (e.g. look-and-feel, branding, sharing) and certain user information (e.g. teams, data source configuration, administrative policy) are stored securely by AppSheet in Google Cloud.