Before you can submit any assignments on a mobile device, you will need to download the Flipgrid app so that you can access the submission page. You will never need to open the Flipgrid app, as it will launch automatically when you are accessing Flipgrid assignments in your Canvas course.
Flipgrid's mobile app is available for:
Please note: if you are unable to successfully submit an assignment using the Canvas mobile app, then we recommend using your mobile device's browser or a computer instead.