Metal Skies is an online mobile game, action, flight combat simulator, you're under attack, and lead the Tiger Squadron to victory in merciless aerial dogfights, is free to play on Android and iOS devices, from Kabam.
Download the game at:
https://play.google.com/store/apps/details?id=com.kabam.metalskies.android
https://itunes.apple.com/ca/app/metal-skies/id860976421?mt=8