be commented on by students. Students may also post to the class class stream, although teachers retain a moderator role. Multiple types of media from Google products such as YouTube videos and Google Drive files can be attached to announcements and posts to share content. Gmail also provides email options for teachers to send emails to one or more students in the Google Classroom interface. Originality Report Introduced in 2020, Originality Report is a built-in plagiarism detection tool which both students and teachers can access. Teachers can view the originality report, allowing them to verify the academic integrity of the student's submitted work. On the free version of G Suite for Education, teachers can turn on originality report for 3 assignments but have limited cloud storage. This restriction is lifted on the paid version of G Suite Enterprise for Education. Archive Courses Classroom allows instructors to archive courses at the end of a term or year. When a course is archived, it is removed from the homepage and placed in the Archived Classes area. When a course is archived, teachers and students can view it, but won't be able to make any changes to unless it is restored. Mobile Applications Google Classroom mobile apps, introduced in January 2015, are available for iOS and Android devices. Reception eLearning Industry tested and made a review of Google Classroom, in which they highlighted many positive and negative aspects. Among Classroom's strengths, the review highlighted ease of use, universal device accessibility, use of Google Drive as an effective way for teachers to quickly share assignments with students. The paperless process meant the end of printing, handing out, and potentially losing work, and the fast feedback system between students and teachers was praised. Among Classroom's disadvantages, the review highlighted the service's heavy integration of Google apps and services with limited or no support for external files or services, lack of automated quizzes and tests, and a lack of live chats that can aid in feedback efforts. Google Classroom won a 2020 Webby Special Achievement Award. Criticism As a company, Google has been criticized on several different issues, including privacy. Specific criticism of Google Classroom generally focuses on concern for privacy for students and Google's use of student data. Criticism of Google Classroom is often combined with criticism of Chromebooks and Google Workspace. Other criticisms directed at Google Classroom are lack of a full-fledged grade book,