A free program for Android, by Daisi Jalbert.

Air War is a simple game of air combat. Aside from the game’s exhilarating combat, you can also send and receive tons of coins. Or if you’re feeling generous, you can share your bonus rewards with your friends and family. Air War has excellent graphics, immersive enough to evoke a sense of realism. The aircraft in the game are also well-animated, further adding to the immersion. 

Air War contains a plethora of levels with increasing difficulty. The harder levels will test your patience, but with perseverance, you can clear them all. Air War is free to download and play on Android phones.