You can use tablets for marking student submissions for both systems supported by the University for online submission of work.
If you created a Turnitin assignment, you can use the iOS app to mark them. There is no Android app available.
Feedback Studio for iOS offers QuickMark comments, voice comments, and interactive rubric grading. It is also available offline, meaning you can grade papers without needing an internet connection and sync them with the Turnitin server as soon as you find a connection.
If you created a Blackboard Assignment, you can the Blackboard Instructor app to mark it. There is an iOS and an Android version of the app. The Blackboard Instructor app helps you easily identify courses where you need to grade student submissions. Instructors and graders can review, annotate, and grade submissions and quickly publish the grades back to students on iOS and Android devices.
Please keep in mind that you can use these grading features in the app:
Grading for assignments
Points, text, percentage, and letter grades
Grading with associated rubrics
These grading features are not available in the app at this time:
Grading group submissions
Grading discussions, blogs, wikis, and journals
Anonymous and delegated grading
Audio and video feedback