Instructors that use Assignment Grader (available for iOS and Android) are no longer required to log in using EduDentity in order to annotate non-PDF assignment submissions. Instructors can now log in using their Brightspace credentials and have the same functionality as they have had in EduDentity.
For more information or to download the Assignment Grader apps, see D2L’s page: https://www.d2l.com/products/assignment-grader/
(Source: D2L)