To use eCampus mobile as a student, you must download the Blackboard app to your mobile device. The Blackboard app for students allows students to view content and participate in courses.
...
Visit the App Store on your Apple device or visit the Play Store on your Android device.
Search for the Blackboard app. View the quick start guide for details about this app.
Download and install the app.
...
Some Apple devices won't allow the push notification from the authentication process and users remain on the login screen. If you're unable to receive a push notification, select the passcode option from the Duo authentication screen. Your device will generate a six digit passcode you can use to authenticate. View the How to Authenticate with Duo article for more information.
How to use eCampus Mobile
Blackboard App Feature Guide
Students can view a full list of eCampus features available in the app, along with steps to navigate and use these features.Supported Course Content in the Blackboard App
Instructors can view a detailed list of what eCampus course content is available to their students in the app, and what content will launch in a browser window.