On an iPad, please be sure to use Safari, not Chrome.
Please be sure you have the most current iOS installed.
When scrolling your student list on the iPad, you must use TWO FINGERS to swipe. If you use 1 finger, it will scroll the whole screen rather than the student list.
It is not possible to design a test on a tablet. There is no way to drag images and text around. You must create tests on your computer.