With my review on Socrative it just makes sense that the iPhone app(s) of the week are the two Socrative apps (the teacher and student clicker). It looks just like the website but there is no need to go to the website it just connects. The apps work great and give you the exact same functionality as the website. In fact they look nearly the same thing as the website. Check out the images below. You can download the Socrative Teacher Clicker here and the Socrative Student Clicker here.
Teacher Clicker images
Student Clicker images