Hello~
There is a problem on iPhone 5/5s real device and Xcode simulator:
There are black area in top and bottom.
But there is no this problem in Corona simulator.
I use Composer GUI/API in this project.
application = { content = { width = 576, height = 1024, scale = "letterbox", xAlign = "center", yAlign = "center", imageSuffix = { ["@2x"] = 1.5, ["@4x"] = 3.0, }, }, }