No revenue estimate for APPLE — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $13.9K — a different platform, not this one.

MH-Zombie

A Helicopter Shooter with realistic physics and Arcade tempo. The National Laboratory made something dangerous, and the Commies want it. Perform aerial interdiction against the relentless Commies, un-locking an increasingly sophisticated arsenal of weaponry from your Multi-Role Helicopter (MH), callsign Zombie 26. If zombies were to somehow result from your failure to fight off the invasion, and the zombies were to escape, all hope of containment would be lost, so fly like your life depends on it (SPOILER: It does). Three maps, game modes, flight physics modes, game difficulty modes, and a litany of badges to earn will keep you coming back to fly the best arcade helicopter game on the App Store. Intuitive, fully-customizable on-screen controls. Bluetooth Gamepad support, with customizable layout. Head tracking via UDP over network (Wifi and separate device (phone, tablet, or computer) required). Race, Evacuation, and Survival game modes, with several sub-modes. Tutorial and Free-Flight modes. Adjustable graphics.