Meet the ikan PT-ELITE-V2: a handy tool that turns your iPad into a teleprompter, allowing you to present like a pro. It supports tablets ranging from 5 x 7.5 inches to 8 x 10.5 inches. There is a Pro version just in case you want to use your iPad Pro. The baseplate lets you attach / remove your camera or use different camera sizes.
The PT Elite Version 2 can be assembled in less than 60 seconds. Just bring your tablet, and you are set. More information is available here.