價格：免費
檔案大小：80.7 MB
版本需求：需要 iOS 4.0 或以上版本。與 iPhone 3GS、iPhone 4、iPhone 4s、iPhone 5、iPhone 5c、iPhone 5s、iPhone 6、iPhone 6 Plus、iPhone 6s、iPhone 6s Plus、iPhone SE、iPhone 7、iPhone 7 Plus、iPhone 8、iPhone 8 Plus、iPhone X、iPhone XS、iPhone XS Max、iPhone XR、iPad、iPod touch (第 3 代)、iPod touch (第 4 代)、iPod touch (第 5 代)、iPod touch (第 6 代) 及 iPod touch (7th generation) 相容。
支援語言：英語
America is under attack and needs your help.
Use one of these amazing air crafts , and defend the sky from the evil invaders .
The freedom of a nation is up to you . don't let us down
支援平台：iPhone, iPad