The only thing better than a great iOS game is a great, free iOS game. We've compiled a list of our favorite free iPad, iPhone, and iPod touch titles, and while many of them offer optional in-app purchases, you can have a good time with each without paying a penny.
It's become increasingly popular to try and shoehorn console-style shooters onto iOS, but there's still something to be said for building a game around a system's limitations, rather than ignoring them. With that in mind, Frontline Commando: D-Day might look like a World War II-themed third-person shooter with (presumably) kludgy controls, but it's actually an arcade-y series of shooting galleries linked by auto-runner sequences. That combination creates a streamlined experience that lets us focus on what really matters: ducking behind cover and popping up just long enough to shoot Nazis in the face.