I found an app on my iPad called You Doodle....it's free...you can take a picture of your quilt top, and "draw" quilting designs on it to see if you like them! You can zoom in on just one block of the quilt at a time to make the drawing easier. I am using a stylus that I found in a drawer....but you can use our finger to draw as well. Fun!
I am very tech you-challenged, so this may be very old news to the rest of you!