You can use Brightspace not only in a (mobile) web browser, but also in an app made available by the supplier. The app is called Pulse and you can download it for free from the Google Play Store and the App Store.

You can use the app to easily view your courses, course components, upcoming activities and your notifications on your phone or tablet. 

If you don't want to use Pulse, you can simply open Brightspace in the browser on your mobile device. Brightspace is responsive and therefore also works well in a mobile browser..