TextShooter

A deceptively simple shooter that will put your tapping to the test. When these X's start falling, you'll need every finger you've got just to stay alive!

No IAP, no ads, just good old-fashioned shooting.

The source code for this game, and full description of how to go about building something like this on your own, is available in the new "Beginning iOS 7 Development" from Apress.