Screenshot

Here is the latest screen shot of Vocabular.  In the first release that I submitted for approval, the arrows aren't there and the text 'Next' and 'Score' aren't there.  After showing it to a few people they weren't sure how the game worked, so this should help.  Tap the left side of the screen (where the left arrow is or above or below it) to move a letter to the left.  Same with the right side to move to the right.  In the upper left corner you will see the next letter that you will get, in the upper right is your score.  Simple.