Google classroom finally released last week a mobile app (iOS and Android) for their recent learning and classroom management app. This makes assigning homework and submitting requirements on the go! Download the app from AppStore and PlayStore. I strongly suggest that you couple the Classroom app with the other Google Apps such as Google Docs, Slides, Sheets, and most importantly, Google Drive.
Moreover, they also added more features to Google classroom: Share from other apps and Turning in photos or videos (any document) from the mobile device, archiving classes (for teachers), and an “Assignment” tab for easier viewing of homework done or not (for student’s only).
Here are two videos showing the updates: