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Devices that have permission within the provisioning profile can be used for testing as long as the certificates are included in the profile. One device can have multiple provisioning profiles installed.

Application icon

Currently, our app has no icon image to display on the device. By default, if there is no icon image set for the application, you will see a light gray box displayed along with your application name below it once the build has been loaded to your device. So, launch your preferred creative developmental tool and let's create a simple image.

The application icon for standard resolution iPad2 or iPad mini image file is 76 x 76 px PNG. The image should always be saved as Icon.png and must be located in your current project folder. iPhone/iPod touch devices that support retina display need an additional high resolution 120 x 120 px and iPad or iPad mini have an icon of 152 x 152 px named as Icon@2x.png.

The contents of your current project folder should look like this:

Hello World/       name of your project folder
  Icon.png           required for iPhone/iPod/iPad
  Icon@2x.png   required for iPhone/iPod with Retina display
  main.lua

In order to distribute your app, the App Store requires a 1024 x 1024 pixel version of the icon. It is best to create your icon at a higher resolution first. Refer to the Apple iOS Human Interface Guidelines for the latest official App Store requirements at http://developer.apple.com/library/ios/#documentation/userexperience/conceptual/mobilehig/Introduction/Introduction.html.

Creating an application icon is a visual representation of your application name. You will be able to view the icon on your device once you compile a build together. The icon is also the image that launches your application.