This is probably the best air simulator in the App Store – Gunship Sequel: WW2 Review

This is a great air simulator, probably the best one until War Thunder gets ported on IOS. All the airplanes and theirs models look and sound just like the real counterpart. The guns sound just like the real thing, and best of all, they have the Vought F4U Corsair, which I find to be a plus. There is no flaws in this game whatsoever maybe except the currency system, which you need gold to get airplanes. If you change that, it would probably help newbies better than pros. Other than that, my statement still stands; this is probably the best Air Simulator on IOS.
Review by Brian Mooseski on Gunship Sequel: WW2.