This app takes English input and translates it to Circular Gallifreyan. You can then share the converted text with others as well as export it to a common image file. Great app for all Doctor Who fans.
Circular Gallifreyan contains several letters with a line extending from them. These lines point in random directions which will change each time the letters are redrawn (including when you rotate the screen). The line must move. Only the number of lines is important for translation.